Appendix C Sewer
Appendix - Sewer System Criteria The sewer system criteria for the HHFDC Keahuolu Lands follows the Hawaii County Department of Environmental Managements criteria as shown below: 1. Quantity of Wastewater
Average Sewer Flow = 80 gallons per capita per day School / Park Sewer Flow = 25 gallons per capita per day
Land Use Densities Single Family 4 persons per unit Multi-Family 2.8 persons per unit Commercial 140 capita per acre Schools 550 students Parks 100 capita per 5 acres
2. Pipeline sizing:
a. Size pipes to convey the design peak flow. b. Minimum size of pipe is 8-inches for mains in roadway areas. c. Minimum velocity in the sewer line flowing full is 2.0 feet per second. d. Maximum velocity in the sewer line flowing full is 10 feet per second. e. Minimum and maximum slopes for sewer lines flowing full:
Pipe Diameter Minimum Slope Maximum Slope 8” 0.00444 0.1110 10” 0.00331 0.0827 12” 0.00259 0.0648 15” 0.00192 0.0479 18” 0.00160 0.0377 21” 0.00092 0.0231 24” 0.00077 0.0193 27” 0.00066 0.0165 30” 0.00057 0.0143
3. Manhole Spacing:
a. 350 feet – pipes up to and including 30 inches in diameter in street areas. b. 250 feet – pipes up to and including 18 inches in diameter in easement areas. c. 350 feet – pipes larger than 18 inches and up to and including 30 inches in diameter in
easement areas.
4. Drop Manholes:
A drop manhole or shallow drop manhole should be provided where a sewer enters a manhole at a height of 18 inches or more above the manhole invert.
5. Sewer Treatment Plant Capacity:
The sewer treatment plant capacity is based on the design average flow from the development.
Hawaii Housing Finance and Development Corporation June 12, 2007Keahuolu Affordable Housing Master Plan Prepared by: Belt Collins Hawaii Ltd.
Sewer Flows - Keahuolu Lands - Concept A
Average Sewer Flows 80 gallons/capita per daySchool / Park Sewer Flows 25 gallons/capita per day
Single Family Residential = 4 persons/unitMulti-family Residential = 2.8 persons/unitCommercial = 140 capita/acreSchools = 550 studentsParks = 100 persons/5 acres
Development Units capita/unit capita sewer flow average flow(gallons/day) (gallons)
Concept A - LOWSingle Family 400 4 1,600 80 128,000Mult-Family 620 2.8 1,736 80 138,880Commercial 9.7 140 1,358 80 108,640Schools 1 550 550 25 13,750Parks 25.18 100 504 25 12,590Total 5,748 401,860
Average Wastewater Flow: 401,860 gallons/dayMaximum Wastewater Flow: 1,547,161 gallons/day (Flow Factor = 3.85)Dry Weather Infiltration/Inflow: 28,738 gallons/dayDesign Average Flow: 430,598 gallons/day <-- Capacity Required at PlantDesign Maximum Flow: 1,575,899 gallons/dayWet Weather Infiltration/Inflow: 340,000 gallons/dayDesign Peak Flow: 1,915,899 gallons/day
Capacity at the Wastewater Treatment Plant = 431,360 gallons/dayTherefore, adequate capacity at the treatment plant.
Hawaii Housing Finance and Development Corporation June 12, 2007Keahuolu Affordable Housing Master Plan Prepared by: Belt Collins Hawaii Ltd.
Page 2Sewer Flows - Keahuolu Lands - Concept B
Average Sewer Flows 80 gallons/capita per daySchool / Park Sewer Flows 25 gallons/capita per day
Single Family Residential = 4 persons/unitMulti-family Residential = 2.8 persons/unitCommercial = 140 capita/acreSchools = 550 studentsParks = 100 persons/5 acres
Development Units capita/unit capita sewer flow average flow(gallons/day) (gallons)
Concept B - MEDSingle Family 600 4 2,400 80 192,000Mult-Family 1240 2.8 3,472 80 277,760Commercial 11.32 140 1,585 80 126,784Schools 1 550 550 25 13,750Parks 25.18 100 504 25 12,590Total 8,510 622,884
Average Wastewater Flow: 622,884 gallons/dayMaximum Wastewater Flow: 2,186,323 gallons/day (Flow Factor = 3.51)Dry Weather Infiltration/Inflow: 42,552 gallons/dayDesign Average Flow: 665,436 gallons/day <-- Capacity Required at PlantDesign Maximum Flow: 2,228,875 gallons/dayWet Weather Infiltration/Inflow: 340,000 gallons/dayDesign Peak Flow: 2,568,875 gallons/day
Capacity at the Wastewater Treatment Plant = 431,360 gallons/dayAdditional Capacity Required at the Treatment Plant = 234,076 gallons/day
Hawaii Housing Finance and Development Corporation June 12, 2007Keahuolu Affordable Housing Master Plan Prepared by: Belt Collins Hawaii Ltd.
Page 3Sewer Flows - Keahuolu Lands - Concept C
Average Sewer Flows 80 gallons/capita per daySchool / Park Sewer Flows 25 gallons/capita per day
Single Family Residential = 4 persons/unitMulti-family Residential = 2.8 persons/unitCommercial = 140 capita/acreSchools = 550 studentsParks = 100 persons/5 acres
Development Units capita/unit capita sewer flow average flow(gallons/day) (gallons)
Concept C - HIGHSingle Family 0 4 0 80 0Mult-Family 2330 2.8 6,524 80 521,920Commercial 11.32 140 1,585 80 126,784Schools 1 550 550 25 13,750Parks 25.18 100 504 25 12,590Total 9,162 675,044
Average Wastewater Flow: 675,044 gallons/dayMaximum Wastewater Flow: 2,315,401 gallons/day (Flow Factor = 3.43)Dry Weather Infiltration/Inflow: 45,812 gallons/dayDesign Average Flow: 720,856 gallons/day <-- Capacity Required at PlantDesign Maximum Flow: 2,361,213 gallons/dayWet Weather Infiltration/Inflow: 340,000 gallons/dayDesign Peak Flow: 2,701,213 gallons/day
Capacity at the Wastewater Treatment Plant = 431,360 gallons/dayAdditional Capacity Required at the Treatment Plant = 289,496 gallons/day
Hawaii Housing Finance and Development Corporation June 12, 2007Keahuolu Affordable Housing Master Plan Prepared by: Belt Collins Hawaii Ltd.
Sewer Flows - Queen Liliuokalani Trust (QLT), Phases 2A & 2B
Average Sewer Flows 80 gallons/capita per daySchool / Park Sewer Flows 25 gallons/capita per day
Single Family Residential = 4 persons/unitMulti-family Residential = 2.8 persons/unitCommercial = 140 capita/acreSchools = 550 studentsParks = 100 persons/5 acres
Development Units capita/unit capita sewer flow average flow(gallons/day) (gallons)
QLT - Phase 2ASingle Family 587 4 2,348 80 187,840Mult-Family 332 2.8 930 80 74,368Commercial 5.9 140 823 80 65,856Schools 1.0 550 550 25 13,750Parks 13.2 100 264 25 6,600Total 4,915 348,414Note: Development units referenced from JZMK Partners Preliminary Residential Program, April 25, 2007.
Total Area: 246 acresAverage Wastewater Flow: 348,414 gallons/dayFlow Factor: 5.00 (See note below)Maximum Wastewater Flow: 1,742,070 gallons/dayDry Weather Infiltration/Inflow: 24,574 gallons/dayDesign Average Flow: 372,988 gallons/dayDesign Maximum Flow: 1,766,644 gallons/dayWet Weather Infiltration/Inflow: 307,500 gallons/dayDesign Peak Flow: 2,074,144 gallons/day
Area average flow design peak flowDevelopment (acres) (gallons/day) (gallons/day)QLT Phase 2A 218.0 348,414 2,074,144QLT Phase 2B* 221.5 353,994 2,107,363
Note: Flow factor of 5.00 used to determine a conservative design peak flow.
*QLT Phase 2B sewer flows are interpolated from Phase 2A. The Phase 2A area used for interpolating was reduced by 28.0 acres (archaeological preserve) in order to match future densities.
Hawaii Housing Finance and Development Corporation June 12, 2007Keahuolu Affordable Housing Master Plan Prepared by: Belt Collins Hawaii Ltd.
Page 2Sewer Flows - Villages of LaiopuaExisting Village 3 and High School, Proposed Villages 4, 5 and Park
Average Sewer Flows 80 gallons/capita per daySchool / Park Sewer Flows 25 gallons/capita per day
Single Family Residential = 4 persons/unitMulti-family Residential = 2.8 persons/unitCommercial = 140 capita/acreSchools = 550 studentsParks = 100 persons/5 acres
Development Units capita/unit capita sewer flow average flow(gallons/day) (gallons)
Villages of Laiopua (Existing and Proposed)Single Family 362 4 1,448 80 115,840Mult-Family 680 2.8 1,904 80 152,320Commercial 0.00 140 0 80 0Schools 1 1400 1,400 25 35,000Parks 5 100 100 25 2,500Total 4,852 305,660Note: Development units and flows referenced from Villages of Laiopua Planned Community Sewer System Master Plan, August 1994 by Belt Collins Hawaii.
Total Area: 183.2 acresAverage Wastewater Flow: 305,660 gallons/dayFlow Factor: 5.00 (See note below)Maximum Wastewater Flow: 1,528,300 gallons/dayDry Weather Infiltration/Inflow: 24,260 gallons/dayDesign Average Flow: 329,920 gallons/dayDesign Maximum Flow: 1,552,560 gallons/dayWet Weather Infiltration/Inflow: 229,000 gallons/dayDesign Peak Flow: 1,781,560 gallons/day
Note: Flow factor of 5.00 used to determine a conservative design peak flow.
Hawaii Housing Finance and Development Corporation June 12, 2007Keahuolu Affordable Housing Master Plan Prepared by: Belt Collins Hawaii Ltd.
Page 3Sewer Flows - Villages of LaiopuaFuture Villages 6, 10, 11, Park & Village Center
Average Sewer Flows 80 gallons/capita per daySchool / Park Sewer Flows 25 gallons/capita per day
Single Family Residential = 4 persons/unitMulti-family Residential = 2.8 persons/unitCommercial = 140 capita/acreSchools = 550 studentsParks = 100 persons/5 acres
Development Units capita/unit capita sewer flow average flow(gallons/day) (gallons)
Villages of Laiopua (Future)Single Family 329 4 1,316 80 105,280Mult-Family 116 2.8 325 80 25,984Commercial 14.50 40 580 80 46,400Parks 4.5 100 90 25 2,250Total 2,311 179,914Note: Development units and flows referenced from Villages of Laiopua Planned Community Sewer System Master Plan, August 1994 by Belt Collins Hawaii.
Total Area: 114.2 acresAverage Wastewater Flow: 179,914 gallons/dayFlow Factor: 5.00 (See note below)Maximum Wastewater Flow: 899,570 gallons/dayDry Weather Infiltration/Inflow: 11,554 gallons/dayDesign Average Flow: 191,468 gallons/dayDesign Maximum Flow: 911,124 gallons/dayWet Weather Infiltration/Inflow: 142,750 gallons/dayDesign Peak Flow: 1,053,874 gallons/day
Note: Flow factor of 5.00 used to determine a conservative design peak flow.
Hawaii Housing Finance and Development Corporation June 12, 2007Keahuolu Affordable Housing Master Plan Prepared by: Belt Collins Hawaii Ltd.
Page 4
DesignPeakFlow
Development (mgd) ReferenceKealakehe/DHHL 1.987
Queen Liliuokalani Village 0.360 Department of Environmental Management(QLV)DHHL-Keahuolu 1.290
Note: Design Peak Flows are those shown on the Off-Site Sewer System Figures.
Villages of Laiopua Planned Community, Sewer System Master Plan, August 1994 by Belt Collins Hawaii.
Villages of Laiopua Planned Community, Sewer System Master Plan, August 1994 by Belt Collins Hawaii.Makalapua Development Sewer System Master Plan, February 1994 (Revised August 1994) by Belt Collins Hawaii.
Miscellaneous Sewer Design Flows
HHFDC Keahuolu LandsOff-Site Sewer System Costs
Description Unit Price Total
Sewer System1- 1 19,300 Cu. Yds., Unclassified Trench Excavation $ 150.00 $ 2,895,0001- 2 1,700 Lin. Ft., 8-inch PVC sewer pipe (ave. 6' cover) $ 23.00 $ 39,1001- 3 2,340 Lin. Ft., 12-inch PVC sewer pipe (ave. 8' cover) $ 37.00 $ 86,5801- 4 3,320 Lin. Ft., 15-inch PVC sewer pipe, (ave. 9' cover) $ 47.00 $ 156,0401- 5 6,850 Lin. Ft., 24-inch PVC sewer pipe (ave. 8' cover) $ 110.00 $ 753,5001- 6 45 Each, Sewer manhole, PVC lined (6-12' deep) $ 11,000.00 $ 495,0001- 7 5 Each, Shallow drop sewer manhole, PVC lined (10' to 13' deep) $ 18,000.00 $ 90,0001- 8 2 Each, Deep drop sewer manhole, PVC lined (13' to 16') $ 26,000.00 $ 52,0001- 9 1 Each, Connect to existing sewer lines $ 3,000.00 $ 3,0001- 10 1 Each, Connect to existing sewer manholes $ 4,000.00 $ 4,0001- 11 1 Lump Sum, Sewer line testing $ 30,000.00 $ 30,0001- 12 1 Lump Sum, Traffic Control $ 20,000.00 $ 20,000
Subtotal for Sewer System - Through QLT $ 4,624,220
Contingency (20%) $ 924,844Subtotal $ 5,549,064Design and construction Services (15%) $ 832,360Total $ 6,381,424SAY $ 6,381,000
SEWER SYSTEM - Through QLT (Concept A)Estimated Quantity
ItemNo.
HHFDCJune 2007 Page 1 of 1
HHFDC Keahuolu LandsOff-Site Sewer System Costs
Description Unit Price Total
Sewer System1- 1 21,000 Cu. Yds., Unclassified Trench Excavation $ 150.00 $ 3,150,0001- 2 1,700 Lin. Ft., 8-inch PVC sewer pipe (ave. 6' cover) $ 23.00 $ 39,1001- 3 1,000 Lin. Ft., 12-inch PVC sewer pipe (ave. 8' cover) $ 37.00 $ 37,0001- 4 4,660 Lin. Ft., 15-inch PVC sewer pipe, (ave. 9' cover) $ 47.00 $ 219,0201- 5 3,630 Lin. Ft., 24-inch PVC sewer pipe (ave. 8' cover) $ 110.00 $ 399,3001- 6 3,220 Lin. Ft., 30-inch HDPE sewer pipe, (ave. 8' cover) $ 90.00 $ 289,8001- 7 45 Each, Sewer manhole, PVC lined (6-12' deep) $ 11,000.00 $ 495,0001- 8 5 Each, Shallow drop sewer manhole, PVC lined (10' to 13' deep) $ 18,000.00 $ 90,0001- 9 2 Each, Deep drop sewer manhole, PVC lined (13' to 16') $ 26,000.00 $ 52,0001- 10 1 Each, Connect to existing sewer lines $ 3,000.00 $ 3,0001- 11 1 Each, Connect to existing sewer manholes $ 4,000.00 $ 4,0001- 12 1 Lump Sum, Sewer line testing $ 30,000.00 $ 30,0001- 13 1 Lump Sum, Traffic Control $ 20,000.00 $ 20,000
Subtotal for Sewer System - Through QLT $ 4,828,220
Contingency (20%) $ 965,644Subtotal $ 5,793,864Design and construction Services (15%) $ 869,080Total $ 6,662,944SAY $ 6,663,000
SEWER SYSTEM - Through QLT (Concepts B and C)Estimated Quantity
ItemNo.
HHFDCJune 2007 Page 1 of 1
HHFDC Keahuolu LandsOff- Site Sewer System Costs
Description Unit Price Total
Sewer System through Laiopua only1- 1 19,330 Cu. Yds., Unclassified Trench Excavation $ 150.00 $ 2,899,5001- 2 8,255 Lin. Ft., 21-inch PVC sewer pipe, (ave. 10' cover) $ 85.00 $ 701,6751- 3 2,470 Lin. Ft., 30-inch HDPE sewer pipe, (ave. 8' cover) $ 90.00 $ 222,3001- 4 22 Each, Sewer manhole, PVC lined (ave 9' deep) $ 11,000.00 $ 242,0001- 6 2 Each, Deep drop sewer manhole, PVC lined (14' deep) $ 19,000.00 $ 38,0001- 7 7 Each, Deep drop sewer manhole, PVC lined (20 - 25' deep) $ 25,000.00 $ 175,0001- 8 1 Each, Connect to existing sewer lines $ 3,000.00 $ 3,0001- 9 1 Each, Connect to existing sewer manholes $ 4,000.00 $ 4,0001- 10 1 Lump Sum, Sewer line testing $ 30,000.00 $ 30,0001- 11 1 Lump Sum, Traffic Control $ 20,000.00 $ 20,000
Subtotal for Laiopua sewer only $ 4,335,475
Contingency (20%) $ 867,095Subtotal $ 5,202,570Design and construction Services (15%) $ 780,386Total $ 5,982,956SAY $ 5,983,000
Sewer through QLT only2- 1 13,400 Cu. Yds., Unclassified Trench Excavation $ 150.00 $ 2,010,0002- 2 1,700 Lin. Ft., 8-inch PVC sewer pipe (ave. 6' cover) $ 23.00 $ 39,1002- 3 2,340 Lin. Ft., 12-inch PVC sewer pipe (ave. 8' cover) $ 37.00 $ 86,5802- 4 1,700 Lin. Ft., 15-inch PVC sewer pipe, (ave. 9' cover) $ 47.00 $ 79,9002- 5 2,450 Lin. Ft., 18-inch PVC sewer pipe, (ave. 9' cover) $ 60.00 $ 147,0002- 6 2,290 Lin. Ft., 24-inch PVC sewer pipe, (ave. 10' cover) $ 110.00 $ 251,9002- 7 33 Each, Sewer manhole, PVC lined (ave 9' deep) $ 11,000.00 $ 363,0002- 8 8 Each, Shallow drop sewer manhole, PVC lined (10' to 13' deep) $ 17,000.00 $ 136,000
Subtotal for QLT sewer only $ 3,113,480
Contingency (20%) $ 622,696Subtotal $ 3,736,176Design and construction Services (15%) $ 560,426Total $ 4,296,602SAY $ 4,297,000
TOTAL FOR SEWER SYSTEM - THROUGH LAIOPUA 10,280,000
ItemNo.
SEWER SYSTEM - Through Laiopua (Concept A)Estimated Quantity
HHFDCJune 2007 Page 1 of 1
HHFDC Keahuolu LandsOff- Site Sewer System Costs
Description Unit Price Total
Sewer System through Laiopua only1- 1 19,330 Cu. Yds., Unclassified Trench Excavation $ 150.00 $ 2,899,5001- 2 8,255 Lin. Ft., 21-inch PVC sewer pipe, (ave. 10' cover) $ 85.00 $ 701,6751- 3 2,470 Lin. Ft., 30-inch HDPE sewer pipe, (ave. 8' cover) $ 90.00 $ 222,3001- 4 22 Each, Sewer manhole, PVC lined (ave 9' deep) $ 11,000.00 $ 242,0001- 6 2 Each, Deep drop sewer manhole, PVC lined (14' deep) $ 19,000.00 $ 38,0001- 7 7 Each, Deep drop sewer manhole, PVC lined (20 - 25' deep) $ 25,000.00 $ 175,0001- 8 1 Each, Connect to existing sewer lines $ 3,000.00 $ 3,0001- 9 1 Each, Connect to existing sewer manholes $ 4,000.00 $ 4,0001- 10 1 Lump Sum, Sewer line testing $ 30,000.00 $ 30,0001- 11 1 Lump Sum, Traffic Control $ 20,000.00 $ 20,000
Subtotal for Laiopua sewer only $ 4,335,475
Contingency (20%) $ 867,095Subtotal $ 5,202,570Design and construction Services (15%) $ 780,386Total $ 5,982,956SAY $ 5,983,000
Sewer through QLT only2- 1 14,500 Cu. Yds., Unclassified Trench Excavation $ 150.00 $ 2,175,0002- 2 1,700 Lin. Ft., 8-inch PVC sewer pipe (ave. 6' cover) $ 23.00 $ 39,1002- 3 1,000 Lin. Ft., 12-inch PVC sewer pipe (ave. 8' cover) $ 37.00 $ 37,0002- 4 3,040 Lin. Ft., 15-inch PVC sewer pipe, (ave. 9' cover) $ 47.00 $ 142,8802- 5 2,450 Lin. Ft., 18-inch PVC sewer pipe, (ave. 10' cover) $ 60.00 $ 147,0002- 5 2,290 Lin. Ft., 24-inch PVC sewer pipe, (ave. 10' cover) $ 110.00 $ 251,9002- 6 33 Each, Sewer manhole, PVC lined (ave 9' deep) $ 11,000.00 $ 363,0002- 7 8 Each, Shallow drop sewer manhole, PVC lined (10' to 13' deep) $ 17,000.00 $ 136,000
Subtotal for QLT sewer only $ 3,291,880
Contingency (20%) $ 658,376Subtotal $ 3,950,256Design and construction Services (15%) $ 592,538Total $ 4,542,794SAY $ 4,543,000
TOTAL FOR SEWER SYSTEM - THROUGH LAIOPUA 10,526,000
Estimated Quantity
ItemNo.
SEWER SYSTEM - Through Laiopua (Concepts B and C)
HHFDCJune 2007 Page 1 of 1
Appendix D Solid Waste
Management Plan
SOLID WASTE MANAGEMENT PLAN
FOR THE
KEAHUOLU AFFORDABLE HOUSING PROJECT
Prepared for
Hawaii Housing Finance & Development Corporation 677 Queen Street, Suite 300
Honolulu, Hawai`i 96813
Prepared by
BELT COLLINS HAWAII LTD. 2153 North King Street, Suite 200
Honolulu, Hawai'i 96819
This work was prepared by me or under my supervision. Expiration Date of License: April 30, 2008
December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SOLID WASTE MANAGEMENT PLAN
BELT COLLINS HAWAII LTD. PAGE 1 OF 2
TABLE OF CONTENTS
INTRODUCTION 1 SOLID WASTE GENERATION 6 CONSTRUCTION PHASE 6 OCCUPANCY PHASE 10 SOLID WASTE MANAGEMENT 14 CONSTRUCTION PHASE 14 OCCUPANCY PHASE 17 SUMMARY 20 REFERENCES 24 APPENDIX A – CALCULATIONS
LIST OF TABLES
TABLE 1-1A: PRELIMINARY DEVELOPMENT PLAN – CONCEPT A 1 TABLE 1-1B: PRELIMINARY DEVELOPMENT PLAN – CONCEPT B 1 TABLE 1-1C: PRELIMINARY DEVELOPMENT PLAN – CONCEPT C 2 TABLE 1-2: ALTERNATIVE DEVELOPMENT PLAN CONCEPTS 2 TABLE 2-1: BUILDING FLOOR AREA 6 TABLE 2-2: CONSTRUCTION WASTE GENERATION PROJECTIONS 7 TABLE 2-3: CONSTRUCTION WASTE COMPOSITION 7 TABLE 2-4A: CONSTRUCTION WASTE COMPOSITION – CONCEPT A 8 TABLE 2-4B: CONSTRUCTION WASTE COMPOSITION – CONCEPT B 8 TABLE 2-4C: CONSTRUCTION WASTE COMPOSITION – CONCEPT C 9 TABLE 2-5A: POPULATIONS AND WASTE GENERATION RATES – CONCEPT A 10 TABLE 2-5B: POPULATIONS AND WASTE GENERATION RATES – CONCEPT B 11 TABLE 2-5C: POPULATIONS AND WASTE GENERATION RATES – CONCEPT C 11 TABLE 2-6: OCCUPANCY WASTE COMPOSITION 12
KEAHUOLU AFFORDABLE HOUSING PROJECT SOLID WASTE MANAGEMENT PLAN
BELT COLLINS HAWAII LTD. PAGE 2 OF 2
LIST OF TABLES (CONTINUED) TABLE 2-7A: OCCUPANCY WASTE COMPOSITION – CONCEPT A 13 TABLE 2-7B: OCCUPANCY WASTE COMPOSITION – CONCEPT B 13 TABLE 2-7C: OCCUPANCY WASTE COMPOSITION – CONCEPT C 14 TABLE 3-1: WASTE COMPOSITION DIVERTED OR RECYCLED CONSTRUCTION WASTE 15 TABLE 3-2A: DIVERTED OR RECYCLED CONSTRUCTION WASTE COMPOSITION – CONCEPT A 15 TABLE 3-2B: DIVERTED OR RECYCLED CONSTRUCTION WASTE COMPOSITION – CONCEPT B 16 TABLE 3-2C: DIVERTED OR RECYCLED CONSTRUCTION WASTE COMPOSITION – CONCEPT C 16 TABLE 3-3: WASTE COMPOSITION DIVERTED OR RECYCLED OCCUPANCY WASTE 17 TABLE 3-4A: DIVERTED OR RECYCLED OCCUPANCY WASTE COMPOSITION – CONCEPT A 18 TABLE 3-4B: DIVERTED OR RECYCLED OCCUPANCY WASTE COMPOSITION – CONCEPT B 18 TABLE 3-4C: DIVERTED OR RECYCLED OCCUPANCY WASTE COMPOSITION – CONCEPT C 19 TABLE 4-1A: SUMMARY OF WASTE DIVERTED AND LANDFILLED – CONCEPT A 20 TABLE 4-1B: SUMMARY OF WASTE DIVERTED AND LANDFILLED – CONCEPT B 21 TABLE 4-1C: SUMMARY OF WASTE DIVERTED AND LANDFILLED – CONCEPT C 22 TABLE 4-2: KEAHUOLU AFFORDABLE HOUSING PROJECT WASTE GENERATION 23 IMPACT ON WEST HAWAI`I LANDFILL
LIST OF FIGURES FIGURE 1: PROJECT LOCATION MAP 3 FIGURE 2: CONCEPTUAL SITE PLAN 4 FIGURE 3: PUBLIC FACILITIES – LANDFILLS / TRANSFER STATIONS 5
KEAHUOLU AFFORDABLE HOUSING PROJECT SOLID WASTE MANAGEMENT PLAN
BELT COLLINS HAWAII LTD. PAGE 1 OF 24
INTRODUCTION
The purpose of this Solid Waste Management Plan (SWMP) is to develop a plan for the management of solid waste generated during the construction and occupancy of the Keahuolu Affordable Housing project.
The Keahuolu Affordable Housing project would be located on approximately 272 acres of land located at Tax Map Key: (3) 7-4-021:20 in North Kona, Hawai’i. (Figure 1 – Location Map). Nearby developments include the Kealakehe High School, Department of Hawaiian Home Lands Village 3 and the existing Kealakehe community. (Figure 2 – Area Map)
The proposed Keahuolu Affordable Housing project is a master planned community of 1,020 to 2,330 dwelling units (single-family and multi-family residences), 197,000 square feet of commercial/retail space, 11.82 acres of school facilities (550 students and 70 faculty and staff with 8,700 square feet of buildings), neighborhood parks, archaeological preserves, landscape buffers, open space and associated infrastructure.
Three preliminary development plan concepts with varying dwelling unit densities and the projected timeline are summarized in Tables 1-1A, 1-1B and 1-1C.
TABLE 1-1A: PRELIMINARY DEVELOPMENT PLAN – CONCEPT A
Land Use Year Residential Units
(multifamily / single family) Commercial/Retail
(SF) School
(SF) 2010 200 / 100 2011 200 / 100 2012 200 / 100 2013 20 / 100 8,700 2014 2015 2016 2017 2018 100,000 2019 2020 97,000 Total 1,020 197,000 8,700
TABLE 1-1B: PRELIMINARY DEVELOPMENT PLAN – CONCEPT B
Land Use Year Residential Units
(multifamily / single family) Commercial/Retail
(SF) School
(SF) 2010 200 / 100 2011 200 / 100 2012 200 / 100 2013 200 / 100 8,700 2014 200 / 100 2015 200 / 100 2016 40 / 0 2017 2018 100,000 2019 2020 97,000 Total 1,840 197,000 8,700
KEAHUOLU AFFORDABLE HOUSING PROJECT SOLID WASTE MANAGEMENT PLAN
BELT COLLINS HAWAII LTD. PAGE 2 OF 24
TABLE 1-1C: PRELIMINARY DEVELOPMENT PLAN – CONCEPT C Land Use
Year Residential Units (multifamily)
Commercial/Retail (SF)
School (SF)
2010 300 2011 300 2012 300 2013 300 8,700 2014 300 2015 300 2016 300 2017 230 2018 100,000 2019 2020 97,000 Total 2,330 197,000 8,700
The three concepts include a variety of high and medium density multifamily units and low density single-family units. The residential units would be located on approximately 162 acres in all three development concepts. Table 1-2 provides a breakdown of the units and densities.
TABLE 1-2: ALTERNATIVE DEVELOPMENT PLAN CONCEPTS Alternative Concepts
A B C Residential Units High density – multifamily 400 800 800 Medium density - multifamily 220 440 1,530 Low density – single-family 400 600 0
Total 1,020 1,840 2,330 Density (dwelling units per acre)
High density – multifamily 12 24 24 Medium density – multifamily 8 16 12 Low density – single-family 4 6 n/a Commercial/retail 197,000 SF 197,000 SF 197,000 SF School 8,700 SF 8,700 SF 8,700 SF
Kawaihae Road
Ako
ni Pule H
ighway
Kohala Mt. Road
Que
en Kaahumanu Hw
y.
Mamalahoa H
ighway
Mam
alah
oa H
ighw
ay
CAPTAIN COOK
PAAUILO
LAUPAHOEHOE
HONOMU
PAPAIKOU
HILO
KEAAUKURTISTOWN
MOUNTAINVIEW PAHOA
KALAPANA
PAHALA
NAALEHU
HONAUNAU
KEAUHOU
Project Location
KAWAIHAE
HAWI
WAIMEA
South Point
HONOKAA
WAIKOLOA
P a c i f i c O c e a n
Kawaihae Bay
Kiholo Bay
Kealakekua Bay
Hilo Bay
Upolu Point
Saddle Road
KAILUA-KONA
KeaholeAirport
Figure 1LOCATION MAP
Keahuolu Affordable HousingSolid Waste Management Plan
December 2007
©2007 Belt Collins Hawaii Ltd. 2006.70.0900/014-3 k12.10.07 1
SCALE IN MILES
0 3 6 12
NORTH
Molokai
STATE OF HAWAII
P a c i f i c O c e a n
Oahu
Kauai
Niihau
Maui
Lanai
KahoolaweHawaii
SCALE IN FEETNORTH
0 600 1200 1800
HonokohauHarbor
CountyKealakehe
SewageTreatment
Plant
Keal
akeh
eKe
ahuo
lu
Queen Ka‘ahumanu Highway
PoliceStation
GolfCourse
Village 9
Village 10
Village 5
Village 11
Village 2
Village8
Village7
Com.Area
Com.Area
KamanuStKamanuStKamanuSt
Main St
McCleanHonokohauProperties
‘AupakaPreserve
‘AupakaPreserve
‘Uhi‘uhiPreserve
KealakeheHigh School
325'ElevationReservoir
Site
325'Elev.Res. SitePalaniStationNo. 1
595' ElevationReservoir SitePalani Station No. 2
DHHLHousing
HELCOPalaniSub-station
Ane Keohokalole Hwy
FormerLandfill
Liliuokalani TrustEstate Land
Macy'sWallace
TheatersK-Mart
HPM
KonaCoast
ShoppingCenter
Henry St
Palani Rd
HHA
935' ElevationReservoir SiteKealakehe Station
KealakeheElementarySchoolKealakehe
Inter.School
KealakeheHouse Lots II
KealakeheHouse Lots I
Public Housing
Ho‘oloa St
595' El.Res. Site
Park
Park
Arch. Park
DHHLDHHLVillage 4Village 4
DHHLVillage 4
DHHLVillage 4
DHHLVillage 1
JackHall
Lailani
LapaNui St
‘Le‘ale‘aSt
‘Onipa‘a StKaimolino
Kealakaa St
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KMDDevelopmentUlua‘oa
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K E A L A K E H EK E A L A K E H EK E A L A K E H E
V I L L A G E S O FL A ‘ I ‘ O P U A
V I L L A G E S O FL A ‘ I ‘ O P U A
V I L L A G E S O FL A ‘ I ‘ O P U A
DHHLDHHLVillage Village 3
DHHLVillage 3
DHHLVillage 3
Keal
akeh
e Pk
wy
Kean
aleh
u Dr
Puohulihuli St
Kamakaeha
Ave
Makala Blvd
LEGEND
Keahuolu Affordable Housing Project Existing Developments
Existing Road
©2007 Belt Collins Hawaii Ltd. 2006.70.0900/021-3 k12.10.07 1
Figure 2
AREA MAP
Keahuolu Affordable HousingSolid Waste Management Plan
December 2007
LEGEND
Keahuolu Affordable Housing Project Existing Developments
Future Developments
Existing Road
SUBJECT PROPERTY
TMK: (3)7-4-21:20
KEAHUOLU AFFORDABLE HOUSING PROJECT SOLID WASTE MANAGEMENT PLAN
BELT COLLINS HAWAII LTD. PAGE 5 OF 24
This report addresses reduction and recycling of solid wastes generated during the Keahuolu Affordable Housing project construction and occupancy. Occupancy waste collection would involve a centralized system, likely provided by one or more private contractors, where recyclables and wastes from residences, commercial/retail buildings and the school would be collected and taken directly to recycling centers or other licensed solid waste facilities. Waste that is not recycled would be taken directly to the closest landfill, which is the West Hawai’i Landfill in Pu’uanahulu, managed by Waste Management of Hawai’i, Inc. The shortest driving distance from the proposed development to the West Hawai’i Landfill is approximately 22 miles (See Figure 3 – Public Facilities - Landfills / Transfer Stations).
FIGURE 3: PUBLIC FACILITIES – LANDFILLS / TRANSFER STATIONS1
Notes: 1. Referenced from the 2002 Updated Integrated Solid Waste Management Plan for the County of Hawai’i. Arrangements for construction waste recycling and disposal would be formalized once the planned development’s construction scheduled is finalized. Likewise, arrangements for operations waste recycling and disposal would be formalized when the planned development is constructed and occupied.
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SOLID WASTE GENERATION
According to the Hawai’i County Code, solid waste (also known as rubbish) is defined as “any rejected material including paper and cardboard cartons, straw, excelsior, rags, clothes, shoes….and any other material of similar character”. If not properly managed, solid waste can have serious negative effects on the environment which could potentially lead to various public health problems. The County of Hawai’i therefore requires solid waste to be removed from any building or premise and disposed of at an approved solid waste disposal facility.
Quantities of solid waste were estimated for both construction and occupancy phases of the planned development. The “construction phase” of development is anticipated to begin in 2008 and completed in 2020. The “occupancy phase” of development refers to the time at which all facilities have been constructed and are open for use. The construction and occupancy phases are expected to overlap, as construction of later portions of the Keahuolu Affordable Housing project would continue while earlier portions are completed and occupied.
CONSTRUCTION PHASE The construction of the proposed project is anticipated to start in 2008 and continue for 12 years until 2020. Projected building floor areas were used to estimate the amount of solid waste generated during construction (Tables 2-1 and 2-2). A range of 3.0 to 5.2 pounds (lbs) of construction waste per square foot (ft²) of building floor area was used to estimate the amount of solid waste generated by construction activities.
TABLE 2-1: BUILDING FLOOR AREA
Building Area (ft²)
Multifamily 400 – 1,500 Use Average: 1,000
Single-family 1,000 – 2,000 Use Average: 1,500
Commercial/retail 197,000
School 8,700
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TABLE 2-2: CONSTRUCTION WASTE GENERATION PROJECTIONS
Construction Waste (tons/year) Year
Concept A Concept B Concept C
2008 525 – 910 525 – 910 450 – 780
2009 1,050 – 1,820 1,050 – 1,820 900 – 1,560
2010 1,050 – 1,820 1,050 – 1,820 900 – 1,560
2011 658 – 1,141 1,063 – 1,843 913 – 1,583
2012 358 – 621 1,063 – 1,843 913 – 1,583
2013 0 1,050 – 1,820 900 – 1,560
2014 0 585 – 1,014 900 – 1,560
2015 0 60 – 104 795 – 1,378
2016 150 – 260 150 – 260 495 – 858
2017 150 – 260 150 – 260 150 – 260
2018 146 – 252 146 – 252 146 – 252
2019 146 – 252 146 – 252 146 – 252
2020 0 0 0 Note: 1. All calculations are based on (3.0 lbs/ft2) x (area of building) x (number of buildings constructed/year) to (5.2 lbs/ft2) x (area of building) x (number of buildings constructed/year). 2. Pounds were multiplied by 5 x 10 -4 (or 1/2000) to convert to tons. 3. See Appendix A for supporting calculations. Shown below in Table 2-3 is an estimate of the components of construction waste based upon its typical composition. Tables 2-4A, 2-4B and 2-4C are estimates of the construction waste for the development plan concepts, the composition of construction waste is an estimate as the waste composition would vary according to the material selected for construction (See Appendix A for supporting calculations).
TABLE 2-3: CONSTRUCTION WASTE COMPOSITION
Percent of 100 Percent Waste Type of Total Waste 1 of Total Waste 2
Wood 40.4-43.3 41.9 Drywall 23.1-33.3 28.2
Cardboard 3.3-9.6 6.5 Metal 0.7-2.5 1.6
Other 4 16.7-25.0 21.9 Total 84.2-113.7 100
Notes: 1. HABiT, 2000. 2. Converted “Percent of Total Waste” to 100 percent by taking the average of the range. 3. Calculations based on annual waste generated. See Appendix A for supporting calculations. 4. Composed of plastics, shingles, ceramic, etc.
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TABLE 2-4A: CONSTRUCTION WASTE COMPOSITION – CONCEPT A
Construction Waste Type (tons/year) Year
Wood Drywall Cardboard Metal Other 1 Total
2008 220 - 381 148 - 257 34 - 59 8 - 15 115 - 199 525 – 910 2009 440 - 763 296 - 513 68 - 118 17 - 29 230 - 399 1,050 – 1,820 2010 440 - 763 296 - 513 68 - 118 17 - 29 230 - 399 1,050 – 1,820 2011 276 - 478 186 - 322 43 - 74 11 - 18 144 - 250 658 – 1,141 2012 150 - 260 101 - 175 23 - 40 6 - 10 78 - 136 358 – 621 2013 0 0 0 0 0 0 2014 0 0 0 0 0 0 2015 0 0 0 0 0 0 2016 63 - 109 42 - 73 10 - 17 2 - 4 33 - 57 150 – 260 2017 63 - 109 42 - 73 10 - 17 2 - 4 33 - 57 150 – 260 2018 61 - 106 41 - 71 9 - 16 2 - 4 32 - 55 146 - 252 2019 61 - 106 41 - 71 9 - 16 2 - 4 32 - 55 146 - 252 2020 0 0 0 0 0 0
TABLE 2-4B: CONSTRUCTION WASTE COMPOSITION – CONCEPT B
Construction Waste Type (tons/year) Year
Wood Drywall Cardboard Metal Other 1 Total
2008 220 - 381 148 - 257 34 - 59 8 - 15 115 - 199 525 – 910 2009 440 - 763 296 - 513 68 - 118 17 - 29 230 - 399 1,050 – 1,820 2010 440 - 763 296 - 513 68 - 118 17 - 29 230 - 399 1,050 – 1,820 2011 445 - 772 300 - 520 69 - 120 17 - 29 233 - 404 1,063 – 1,843 2012 445 - 772 300 - 520 69 - 120 17 - 29 233 - 404 1,063 – 1,843 2013 440 - 763 296 - 513 68 - 118 17 - 29 230 - 399 1,050 – 1,820 2014 245 - 425 165 - 286 38 - 66 9 - 16 28 – 222 585 – 1,014 2015 25 - 44 17 - 29 4 - 7 1 - 2 13 - 23 60 - 104 2016 63 - 109 42 - 73 10 - 17 2 - 4 33 - 57 150 – 260 2017 63 - 109 42 - 73 10 - 17 2 - 4 33 - 57 150 – 260 2018 61 - 106 41 - 71 9 - 16 2 - 4 32 - 55 146 - 252 2019 61 - 106 41 - 71 9 - 16 2 - 4 32 - 55 146 - 252 2020 0 0 0 0 0 0
Notes: 1. Composed of plastics, shingles, ceramic, etc. 2 See Appendix A for supporting calculations.
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TABLE 2-4C: CONSTRUCTION WASTE COMPOSITION – CONCEPT C
Construction Waste Type (tons/year) Year
Wood Drywall Cardboard Metal Other 1 Total
2008 189 - 327 127 - 220 29 - 51 7 - 12 99 - 71 450 - 780 2009 377 - 654 254 - 440 59 - 101 14 - 25 197 - 342 900 – 1,560 2010 377 - 654 254 - 440 59 - 101 14 - 25 197 - 342 900 – 1,560 2011 383 - 663 257 - 446 59 - 103 15 - 25 200 - 347 913 – 1,583 2012 383 - 663 257 - 446 59 - 103 15 - 25 200 - 347 913 – 1,583 2013 377 - 654 254 - 440 59 - 101 14 - 25 197 - 342 900 – 1,560 2014 377 - 654 254 - 440 59 - 101 14 - 25 197 - 342 900 – 1,560 2015 333 - 577 224 - 389 52 - 90 13 - 22 174 - 302 795 – 1,378 2016 207 - 360 140 - 242 32 - 56 8 - 14 108 – 188 495 - 858 2017 63 - 109 42 - 73 10 - 17 2 - 4 33 - 57 150 – 260 2018 61 - 106 41 - 71 9 - 16 2 - 4 32 - 55 146 - 252 2019 61 - 106 41 - 71 9 - 16 2 - 4 32 - 55 146 - 252 2020 0 0 0 0 0 0
Notes: 1. Composed of plastics, shingles, ceramic, etc. 2 See Appendix A for supporting calculations.
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OCCUPANCY PHASE The Keahuolu Affordable Housing project is anticipated to begin its occupancy phase in 2010 and increase continuously until full occupancy is achieved in 2020. During the occupancy phase, solid waste quantities are a function of population. Therefore, the population during the occupancy phase was estimated based upon the following considerations:
• An average of 4 persons per single family unit. • An average of 2.8 persons per multifamily unit • 620 students, faculty and staff at the school facility
o Students, faculty and staff are at the school only 42% of the day o Daily population = 260 persons
• 197,000 square feet of commercial / retail o 30 to 60 square feet / person for stores (per 1997 Uniform Building Code) o 100 square feet / person for office (per 1997 Uniform Building Code) o Use 72 square feet / person with 42% occupancy during the day o 100,000 square feet daily population = 583 persons o 97,000 square feet daily population = 566 persons
• Solid waste generation rate of 6.2 pounds per person per day. Shown below in Tables 2-5A, 2-5B or 2-5C are population estimates as well as the anticipated amount of solid waste generated during the operations phase for development concepts A, B or C, respectively.
TABLE 2-5A: POPULATIONS AND WASTE GENERATION RATES – CONCEPT A
Year Average Daily Population
Daily Waste Generated (lbs/day) 1
Annual Waste Generated
(tons/year) 2 2010 960 5,952 1,086
2011 1,920 11,904 2,172
2012 2,880 17,856 3,259
2013 3,596 22,295 4,069
2014 3,596 22,295 4,069
2015 3,596 22,295 4,069
2016 3,596 22,295 4,069
2017 3,596 22,295 4,069
2018 4,180 25,916 4,730
2019 4,180 25,916 4,730
2020 and Beyond
4,746 29,425 5,370
Notes: 1. Calculation based on (6.2 lbs./person/day) x (total average per day population). See Appendix A for supporting calculations. 2. Calculation based on (daily waste generation) x (365 days) x (1/2000 tons/lb.). See Appendix A for supporting calculations.
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TABLE 2-5B: POPULATIONS AND WASTE GENERATION RATES – CONCEPT B
Year Average Daily Population
Daily Waste Generated (lbs/day) 1
Annual Waste Generated
(tons/year) 2 2010 960 5,952 1,086
2011 1,920 11,904 2,172
2012 2,880 17,856 3,259
2013 4,100 25,420 4,639
2014 5,060 31,372 5,725
2015 6,020 37,324 6,812
2016 6,132 38,018 6,938
2017 6,132 38,018 6,938
2018 6,716 41,639 7,599
2019 6,716 41,639 7,599
2020 and Beyond
7,282 45,148 8,240
TABLE 2-5C: POPULATIONS AND WASTE GENERATION RATES – CONCEPT C
Year Average Daily Population
Daily Waste Generated (lbs/day) 1
Annual Waste Generated
(tons/year) 2 2010 840 5,208 950
2011 1,680 10,416 1,901
2012 2,520 15,624 2,851
2013 3,620 22,444 4,096
2014 4,460 27,652 5,046
2015 5,300 32,860 5,997
2016 6,140 38,068 6,947
2017 6,784 42,061 7,676
2018 7,368 45,682 8,337
2019 7,368 45,682 8,337
2020 and Beyond
7,934 49,191 8,977
Notes: 1. Calculation based on (6.2 lbs./person/day) x (total average per day population). See Appendix A for supporting calculations. 2. Calculation based on (daily waste generation) x (365 days) x (1/2000 tons/lb.). See Appendix A for supporting calculations.
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The composition of wastes generated during the occupancy phase of the Keahuolu Affordable Housing project is based upon the 1993 Hawai’i Integrated Solid Waste Management Plan as well as a 2003 Oahu Waste Composition Study. Table 2-6 includes waste composition proportions and Tables 2-7A, 2-7B or 2-7C provides a yearly breakdown of the waste composition anticipated at the Keahuolu project for development concepts A, B or C, respectively. Management of these wastes is discussed in the following section.
TABLE 2-6: OCCUPANCY WASTE COMPOSITION
Waste Type
Percent of Total
Waste1
Paper 16.7 Yard
Waste 12.5 Food Waste 8.4
Plastic 4.4 Other
Organic 21.5
Metals 13.1
Glass 1.6 Other
Inorganic 21.8
Total 100.0 Notes: 1. 1993 County of Hawai’i Integrated Solid Waste Management Plan, 2003 Oahu Waste Composition Study
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TABLE 2-7A: OCCUPANCY WASTE COMPOSITION – CONCEPT A
Occupancy Waste (tons/year) Year
Paper Yard Food Plastic Other Organic Metals Glass Other
Inorganic Total
2010 181 136 91 48 233 142 17 237 1,086
2011 363 272 182 96 467 285 35 473 2,172
2012 544 407 274 143 701 427 52 710 3,259
2013 680 509 342 179 875 533 65 887 4,069
2014 680 509 342 179 875 533 65 887 4,069
2015 680 509 342 179 875 533 65 887 4,069
2016 680 509 342 179 875 533 65 887 4,069
2017 680 509 342 179 875 533 65 887 4,069
2018 790 591 397 208 1,017 620 76 1,031 4,730
2019 790 591 397 208 1,017 620 76 1,031 4,730
2020 897 671 451 236 1,155 703 86 1,171 5,370
Notes: 1. Calculation based on (annual waste generated from Table 2-5A) x (“Percent of Total Waste” from Table 2-6).
TABLE 2-7B: OCCUPANCY WASTE COMPOSITION – CONCEPT B
Occupancy Waste (tons/year) Year
Paper Yard Food Plastic Other Organic Metals Glass Other
Inorganic Total
2010 181 136 91 48 233 142 17 237 1,086
2011 363 272 182 96 467 285 35 473 2,172
2012 544 407 274 143 701 427 52 710 3,259
2013 775 580 390 204 997 608 74 1,011 4,639
2014 956 716 481 252 1,231 750 92 1,248 5,725
2015 1,138 852 572 300 1,465 892 109 1,485 6,812
2016 1,159 867 583 305 1,492 909 111 1,512 6,938
2017 1,159 867 583 305 1,492 909 111 1,512 6,938
2018 1,269 950 638 334 1,634 995 122 1,657 7,599
2019 1,269 950 638 334 1,634 995 122 1,657 7,599
2020 1,376 1,030 692 363 1,772 1,079 132 1,796 8,240
Notes: 1. Calculation based on (annual waste generated from Table 2-5B) x (“Percent of Total Waste” from Table 2-6).
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TABLE 2-7C: OCCUPANCY WASTE COMPOSITION – CONCEPT C
Occupancy Waste (tons/year) Year
Paper Yard Food Plastic Other Organic Metals Glass Other
Inorganic Total
2010 159 119 80 42 204 124 15 207 950
2011 317 238 160 84 409 249 30 414 1,901
2012 476 356 239 125 613 373 46 622 2,851
2013 684 512 344 180 881 537 66 893 4,096
2014 843 631 424 222 1,085 661 81 1,100 5,046
2015 1,001 750 504 264 1,289 786 96 1,307 5,997
2016 1,160 868 584 306 1,494 910 111 1,514 6,947
2017 1,282 960 645 338 1,650 1,006 123 1,673 7,676
2018 1,392 1,042 700 367 1,792 1,092 133 1,817 8,337
2019 1,392 1,042 700 367 1,792 1,092 133 1,817 8,337
2020 1,499 1,122 754 395 1,930 1,176 144 1,957 8,977
Notes: 1. Calculation based on (annual waste generated from Table 2-5C) x (“Percent of Total Waste” from Table 2-6).
SOLID WASTE MANAGEMENT
Emphasis for the management of solid wastes generated by the Keahuolu Affordable Housing project would be placed on waste diversion and recycling. Solid wastes would be managed in conformance with the applicable Department of Health and County requirements. The landfill nearest to the Keahuolu project is the West Hawai’i Landfill at Pu’uanahulu. Since the County of Hawai’i does not provide waste collection services, recycle and disposal of construction and occupancy wastes generated would be hauled by private contractors or individuals. Specific arrangements for construction and occupancy wastes would be made closer to the project beginning. Recyclables and wastes would be managed in a centralized system or by private individuals, and hauled directly to recycling centers, transfer stations and the landfill.
Although West Hawai’i is located in an area where the annual precipitation does not often exceed the amount of evapotranspiration (water lost to the atmosphere by evaporation and transpiration), all waste should avoid contact with water as best as possible. Waste that comes into contact with water before being hauled to the landfill may result in leachate (liquid produced when water percolates through any permeable material) at the landfill. Leachate could contaminate both ground and surface water, which may lead to various environmental and health problems as well as the degradation of local amenities. It can best be managed by daily covering of all waste to minimize the amount of water percolation.
CONSTRUCTION PHASE As shown in Table 2-2, approximately 146 – 1,820 tons/year, 60 – 1,843 tons/year or 146 – 1,583 ton/year of construction waste would be generated for development concepts A, B or C, respectively, during the construction of the Keahuolu Affordable Housing project from 2008 to 2019.
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The primary method of reducing (or mitigating) the amount of construction waste to be hauled offsite would be recycling. The following items or materials would be recycled to the extent practicable: green waste (processed and used on site), wood waste (processed with green waste when practical, depending on type of wood and ability to chip, and used on site), cardboard (recycled off site), and metals (recycled off site). The remaining categories of wastes (i.e., drywall, other) may be recycled if a local recycling vendor is available. Otherwise, these non-recyclable wastes would be hauled to the landfill. The construction waste composition that may be diverted or recycled is shown in Table 3-1 and Tables 3-2A, 3-2B or 3-2C provides a yearly breakdown of the waste composition for the development concepts, A, B or C, respectively. According to the estimated waste composition information, approximately 73 – 910 tons/year, 30 – 922 tons/year or 73 – 792 tons/year of construction wastes could be recycled for development concepts A, B or C, respectively. The remaining 50% would likely be hauled to the landfill.
TABLE 3-1: WASTE COMPOSITION
DIVERTED OR RECYCLED CONSTRUCTION WASTE
Waste Type
Percent of TotalWaste1
100 Percent of Total Waste 2
Wood 40.4-43.3 41.9
Cardboard 3.3-9.6 6.5
Metal 0.7-2.5 1.6
Total 44.4-55.4 49.9
Notes: 1. HABiT, 2000. 2. Converted “Percent of Total Waste” to 100 percent by taking the average of the range.
TABLE 3-2A: DIVERTED OR RECYCLED CONSTRUCTION WASTE COMPOSITION – CONCEPT A
Diverted or Recycled Construction Waste (tons/year) Year
Wood Cardboard Metal Total 2008 220 - 381 34 - 59 8 - 15 263 – 455 2009 440 - 763 68 - 118 17 - 29 525 – 910 2010 440 - 763 68 - 118 17 - 29 525 – 910 2011 276 - 478 43 - 74 11 - 18 329 – 571 2012 150 - 260 23 - 40 6 - 10 179 – 311 2013 0 0 0 0 2014 0 0 0 0 2015 0 0 0 0 2016 63 - 109 10 - 17 2 - 4 75 – 130 2017 63 - 109 10 - 17 2 - 4 75 – 130 2018 61 - 106 9 - 16 2 - 4 73 – 126 2019 61 - 106 9 - 16 2 - 4 73 – 126 2020 0 0 0 0
Notes: 1. See Table 2-4A and Appendix A for supporting calculations.
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TABLE 3-2B: DIVERTED OR RECYCLED CONSTRUCTION WASTE COMPOSITION – CONCEPT B
Diverted or Recycled Construction Waste (tons/year) Year
Wood Cardboard Metal Total 2008 220 - 381 34 - 59 8 - 15 263 – 455 2009 440 - 763 68 - 118 17 - 29 525 – 910 2010 440 - 763 68 - 118 17 - 29 525 – 910 2011 445 - 772 69 - 120 17 - 29 532 – 922 2012 445 - 772 69 - 120 17 - 29 532 – 922 2013 440 - 763 68 - 118 17 - 29 525 – 910 2014 245 - 425 38 - 66 9 - 16 293 – 507 2015 25 - 44 4 - 7 1 - 2 30 – 52 2016 63 - 109 10 - 17 2 - 4 75 – 130 2017 63 - 109 10 - 17 2 - 4 75 – 130 2018 61 - 106 9 - 16 2 - 4 73 – 126 2019 61 - 106 9 - 16 2 - 4 73 – 126 2020 0 0 0 0
Notes: 1. See Table 2-4B and Appendix A for supporting calculations.
TABLE 3-2C: DIVERTED OR RECYCLED CONSTRUCTION WASTE COMPOSITION – CONCEPT C
Diverted or Recycled Construction Waste (tons/year) Year
Wood Cardboard Metal Total 2008 189 - 327 29 - 51 7 - 12 225 – 390 2009 377 - 654 59 - 101 14 - 25 450 – 780 2010 377 - 654 59 - 101 14 - 25 450 – 780 2011 383 - 663 59 - 103 15 - 25 457 – 792 2012 383 - 663 59 - 103 15 - 25 457 – 792 2013 377 - 654 59 - 101 14 - 25 450 – 780 2014 377 - 654 59 - 101 14 - 25 450 – 780 2015 333 - 577 52 - 90 13 - 22 398 – 689 2016 207 - 360 32 - 56 8 - 14 248 – 429 2017 63 - 109 10 - 17 2 - 4 75 – 130 2018 61 - 106 9 - 16 2 - 4 73 – 126 2019 61 - 106 9 - 16 2 - 4 73 – 126 2020 0 0 0 0
Notes: 1. See Table 2-4C and Appendix A for supporting calculations.
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OCCUPANCY PHASE The primary method of reducing (or mitigating) the amount of occupancy waste to be hauled offsite is recycling. To the extent practicable, the planned development would arrange for green waste (e.g., yard waste) generated during grounds keeping be collected and processed for use as soil amendment on the site. Wastes that cannot be incorporated into green waste processing on site would be minimized, and recycled or hauled to the landfill as appropriate. Future arrangements for recycling collection (aluminum, paper, newspaper, glass, and plastic containers) in building areas, and waste hauling for the remainder of waste that is not readily recyclable, would be made. The wastes associated with commercial / retail activities would also be recycled (likely to include cardboard, paper, glass, and plastic containers). Specialized materials associated with grounds keeping (e.g., pesticides and fertilizers) would be used according to accepted practices (i.e., pesticide rinsate would be used as product, and fertilizer would be used up or incorporated into green waste processing at the site). Specialized materials associated with maintenance and industrial activities (e.g., motor oil and solvents) would be recycled when possible or disposed according to accepted practices for the County of Hawai’i.
The anticipated recycled waste composition for the occupancy is shown in Table 3-3 and Tables 3-4A, 3-4B or 3-4C provides a yearly breakdown of the recycled waste for the development concepts, A, B or C, respectively. Hawai’i County’s recycling rate is approximately 25.8 percent (County of Hawai’i – Solid Waste Disposal Summary 2006 - 2006). Based on the Keahuolu Affordable Housing project having a recycling rate equivalent to that measured by Hawai’i County, 1,385 tons, 2,126 tons or 2,316 tons of the total occupancy waste would be diverted or recycled for development concepts A, B or C, respectively. All other organic and inorganic categories of waste would likely be hauled to the landfill. Contracts with private recyclers and waste haulers would be developed to achieve these ends. In addition, green waste would be processed and used on site as soil amendment to the extent practical. Processing of green waste may involve chipping and passive composting of organic waste, resulting in soil amendment for use at the Keahuolu Affordable Housing project.
TABLE 3-3: WASTE COMPOSITION
DIVERTED OR RECYCLED OCCUPANCY WASTE
Waste Type
Percent of Total Waste1
Paper 16.7 Yard Waste 12.5
Plastic 4.4 Metals 13.1 Glass 1.6
Total Recyclable 48.3
Total Diverted Waste 25.8 Notes: 1. 1993 County of Hawai’i Integrated Solid Waste Management Plan, 2003 Oahu Waste Composition Study
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TABLE 3-4A: DIVERTED OR RECYCLED OCCUPANCY WASTE COMPOSITION – CONCEPT A
Occupancy Waste (tons/year) Year
Paper Yard Plastic Metals Glass Total Recyclable
Total Diverted Waste 2
2010 181 136 48 142 17 525 280
2011 363 272 96 285 35 1,049 560
2012 544 407 143 427 52 1,574 841
2013 680 509 179 533 65 1,965 1,050
2014 680 509 179 533 65 1,965 1,050
2015 680 509 179 533 65 1,965 1,050
2016 680 509 179 533 65 1,965 1,050
2017 680 509 179 533 65 1,965 1,050
2018 790 591 208 620 76 2,285 1,220
2019 790 591 208 620 76 2,285 1,220
2020 897 671 236 703 86 2,594 1,385 Notes: 1. Occupancy waste type (paper, yard, plastic, metals and glass) are referenced from Table 2-7A. 2. Calculation based on (annual waste generated from Table 2-7A) x (25.8 percent recycle rate).
TABLE 3-4B: DIVERTED OR RECYCLED OCCUPANCY WASTE COMPOSITION – CONCEPT B
Occupancy Waste (tons/year) Year
Paper Yard Plastic Metals Glass Total Recyclable
Total Diverted Waste 2
2010 181 136 48 142 17 525 280
2011 363 272 96 285 35 1,049 560
2012 544 407 143 427 52 1,574 841
2013 775 580 204 608 74 2,241 1,197
2014 956 716 252 750 92 2,765 1,477
2015 1,138 852 300 892 109 3,290 1,757
2016 1,159 867 305 909 111 3,351 1,790
2017 1,159 867 305 909 111 3,351 1,790
2018 1,269 950 334 995 122 3,670 1,961
2019 1,269 950 334 995 122 3,670 1,961
2020 1,376 1,030 363 1,079 132 3,980 2,126
Notes: 1. Occupancy waste type (paper, yard, plastic, metals and glass) are referenced from Table 2-7B. 2. Calculation based on (annual waste generated from Table 2-7B) x (25.8 percent recycle rate).
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TABLE 3-4C: DIVERTED OR RECYCLED OCCUPANCY WASTE COMPOSITION – CONCEPT C
Occupancy Waste (tons/year) Year
Paper Yard Plastic Metals Glass Total Recyclable
Total Diverted Waste 2
2010 159 119 42 124 15 459 245
2011 317 238 84 249 30 918 490
2012 476 356 125 373 46 1,377 736
2013 684 512 180 537 66 1,978 1,057
2014 843 631 222 661 81 2,437 1,302
2015 1,001 750 264 786 96 2,897 1,547
2016 1,160 868 306 910 111 3,355 1,792
2017 1,282 960 338 1,006 123 3,708 1,980
2018 1,392 1,042 367 1,092 133 4,027 2,151
2019 1,392 1,042 367 1,092 133 4,027 2,151
2020 1,499 1,122 395 1,176 144 4,336 2,316
Notes: 1. Occupancy waste type (paper, yard, plastic, metals and glass) are referenced from Table 2-7C. 2. Calculation based on (annual waste generated from Table 2-7C) x (25.8 percent recycle rate).
KEAHUOLU AFFORDABLE HOUSING PROJECT SOLID WASTE MANAGEMENT PLAN
BELT COLLINS HAWAII LTD. PAGE 20 OF 24
SUMMARY
Based on the estimated waste generation rates for construction and occupancy at the Keahuolu Affordable Housing project and the solid waste management plans for waste diversion through minimization and recycling of materials, estimated waste diversion and landfilling generation are shown in Tables 4-1A, 4-1B or 4-1C for development concepts A, B or C, respectively.
TABLE 4-1A: SUMMARY OF WASTE DIVERTED AND LANDFILLED – CONCEPT A
Construction Waste Occupancy Waste
Diverted Landfilled Diverted Landfilled
Year
Was
te1
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Was
te3
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Was
te4
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Was
te5
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Tota
l Div
erte
d W
aste
(ton
s/yr
)
Tota
l Lan
dfill
ed
Was
te (t
ons/
yr)
2008 263-455 0.5-0.9 262-455 0.5-0.9 0 0 0 0 263-455 262-455
2009 525-910 1.0-1.8 525-910 1.0-1.8 0 0 0 0 525-910 525-910
2010 525-910 1.0-1.8 525-910 1.0-1.8 280 0.5 806 1.6 805-1,190 1,331-1,716
2011 329-571 0.6-1.1 329-570 0.6-1.1 560 1.1 1,612 3.1 889-1,131 1,941-2,182
2012 179-311 0.3-0.6 179-310 0.3-0.6 841 1.6 2,418 4.7 1,020-1,152 2,597-2,728
2013 0 0 0 0 1,050 2.0 3,019 5.8 1,050 3,019
2014 0 0 0 0 1,050 2.0 3,019 5.8 1,050 3,019
2015 0 0 0 0 1,050 2.0 3,019 5.8 1,050 3,019
2016 75-130 0.1-0.3 75-130 0.1-0.3 1,050 2.0 3,019 5.8 1,125-1,180 3,094-3,149
2017 75-130 0.1-0.3 75-130 0.1-0.3 1,050 2.0 3,019 5.8 1,125-1,180 3,094-3,149
2018 73-126 0.1-0.2 73-126 0.1-0.2 1,220 2.3 3,510 6.8 1,293-1,346 3,583-3,636
2019 73-126 0.1-0.2 73-126 0.1-0.2 1,220 2.3 3,510 6.8 1,293-1,346 3,583-3,636
2020+
0 0 0 0 1,385 2.7 3,985 7.7 1,385 3,985
Notes: 1. Diverted waste (tons/year) is waste that would be recycled. Values from total diverted construction waste (Table 3-2A). 2. Calculation based on 10-ton capacity for trucks that pick up waste. 3. Calculation based on total construction waste (Table 2-4A) – total diverted construction waste (Table 3-2A). 4. Diverted waste is waste that would be recycled. Values from total diverted occupancy waste (Table 3-4A). 5. Calculation based on total occupancy waste (Table 2-7A) – total diverted occupancy waste (Table 3-4A). 6. See Appendix A for supporting calculations.
KEAHUOLU AFFORDABLE HOUSING PROJECT SOLID WASTE MANAGEMENT PLAN
BELT COLLINS HAWAII LTD. PAGE 21 OF 24
TABLE 4-1B: SUMMARY OF WASTE DIVERTED AND LANDFILLED – CONCEPT B
Construction Waste Occupancy Waste
Diverted Landfilled Diverted Landfilled
Year
Was
te1
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Was
te3
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Was
te4
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Was
te5
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Tota
l Div
erte
d W
aste
(ton
s/yr
)
Tota
l Lan
dfill
ed
Was
te (t
ons/
yr)
2008 263-455 0.5-0.9 262-455 0.5-0.9 0 0 0 0 263-455 262-455
2009 525-910 1.0-1.8 525-910 1.0-1.8 0 0 0 0 525-910 525-910
2010 525-910 1.0-1.8 525-910 1.0-1.8 280 0.5 806 1.6 805-1,190 1,331-1,716
2011 532-922 1.0-1.8 531-921 1.0-1.8 560 1.1 1,612 3.1 1,092-1,482 2,143-2,533
2012 532-922 1.0-1.8 531-921 1.0-1.8 841 1.6 2,418 4.7 1,373-1,763 2,949-3,339
2013 525-910 1.0-1.8 525-910 1.0-1.8 1,197 2.3 3,442 6.6 1,722-2,107 3,967-4,352
2014 293-507 0.6-1.0 292-507 0.6-1.0 1,477 2.8 4,248 8.2 1,770-1,984 4,540-4,755
2015 30-52 0.1-0.1 30-52 0.1-0.1 1,757 3.4 5,055 9.7 1,787-1,809 5,085-5,107
2016 75-130 0.1-0.3 75-130 0.1-0.3 1,790 3.4 5,148 9.9 1,865-1,920 5,223-5,278
2017 75-130 0.1-0.3 75-130 0.1-0.3 1,790 3.4 5,148 9.9 1,865-1,920 5,223-5,278
2018 73-126 0.1-0.2 73-126 0.1-0.2 1,961 3.8 5,638 10.8 2,034-2,087 5,711-5,764
2019 73-126 0.1-0.2 73-126 0.1-0.2 1,961 3.8 5,638 10.8 2,034-2,087 5,711-5,764
2020+
0 0 0 0 2,126 4.1 6,114 11.8 2,126 6,114
Notes: 1. Diverted waste (tons/year) is waste that would be recycled. Values from total diverted construction waste (Table 3-2B). 2. Calculation based on 10-ton capacity for trucks that pick up waste. 3. Calculation based on total construction waste (Table 2-4B) – total diverted construction waste (Table 3-2B). 4. Diverted waste is waste that would be recycled. Values from total diverted occupancy waste (Table 3-4B). 5. Calculation based on total occupancy waste (Table 2-7B) – total diverted occupancy waste (Table 3-4B). 6. See Appendix A for supporting calculations.
KEAHUOLU AFFORDABLE HOUSING PROJECT SOLID WASTE MANAGEMENT PLAN
BELT COLLINS HAWAII LTD. PAGE 22 OF 24
TABLE 4-1C: SUMMARY OF WASTE DIVERTED AND LANDFILLED – CONCEPT C
Construction Waste Occupancy Waste
Diverted Landfilled Diverted Landfilled
Year
Was
te1
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Was
te3
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Was
te4
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Was
te5
(tons
/yr)
# Tr
ucks
pe
r wee
k2
Tota
l Div
erte
d W
aste
(ton
s/yr
)
Tota
l Lan
dfill
ed
Was
te (t
ons/
yr)
2008 225-390 0.4-0.8 225-390 0.4-0.8 0 0 0 0 225-390 225-390
2009 450-780 0.9-1.5 450-780 0.9-1.5 0 0 0 0 450-780 450-780
2010 450-780 0.9-1.5 450-780 0.9-1.5 245 0.5 705 1.4 695-1,025 1,155-1,485
2011 457-792 0.9-1.5 456-791 0.9-1.5 490 0.9 1,411 2.7 947-1,282 1,867-2,202
2012 457-792 0.9-1.5 456-791 0.9-1.5 736 1.4 2,115 4.1 1,193-1,528 2,571-2,906
2013 450-780 0.9-1.5 450-780 0.9-1.5 1,057 2.0 3,039 5.8 1,507-1,837 3,489-3,819
2014 450-780 0.9-1.5 450-780 0.9-1.5 1,302 2.5 3,744 7.2 1,752-2,082 4,194-4,524
2015 398-689 0.8-1.3 397-689 0.8-1.3 1,547 3.0 4,450 8.6 1,945-2,236 4,847-5,139
2016 248-429 0.5-0.8 247-429 0.5-0.8 1,792 3.4 5,155 9.9 2,040-2,221 5,402-5,584
2017 75-130 0.1-0.3 75-130 0.1-0.3 1,980 3.8 5,696 11.0 2,055-2,110 5,771-5,826
2018 73-126 0.1-0.2 73-126 0.1-0.2 2,151 4.1 6,186 11.9 2,224-2,277 6,259-6,312
2019 73-126 0.1-0.2 73-126 0.1-0.2 2,151 4.1 6,186 11.9 2,224-2,277 6,259-6,312
2020+
0 0 0 0 2,316 4.5 6,661 12.8 2,316 6,661
Notes: 1. Diverted waste (tons/year) is waste that would be recycled. Values from total diverted construction waste (Table 3-2C). 2. Calculation based on 10-ton capacity for trucks that pick up waste. 3. Calculation based on total construction waste (Table 2-4C) – total diverted construction waste (Table 2-2C). 4. Diverted waste is waste that would be recycled. Values from total diverted occupancy waste (Table 3-4C). 5. Calculation based on total occupancy waste (Table 2-7C) – total diverted occupancy waste (Table 3-4C). 6. See Appendix A for supporting calculations.
Trucks would most likely be used to haul construction and occupancy waste to either a local recycling vendor, for diverted waste, or to the West Hawai’i Landfill, for landfilled waste. For construction waste the number of trucks is expected to be on an on-call basis, meaning that less than one truck per week to three trucks per week would be required for both diverted and landfilled waste. For occupancy waste the number of trucks is expected to be a set schedule varying from two to about 18 trucks per week for both diverted and landfilled waste. The truck route to the West Hawai’i Landfill would most likely be from the project down Kealakehe Parkway and along Queen Kaahumanu Highway. The truck route to the local recycling vendor (anticipated to be Atlas Recycling Center in Kona town) would most likely be from the project down Kealakehe Parkway to Queen Kaahumanu Highway, Malakala Boulevard, Luhia Street, Kaiwi Street and Pawai Place.
KEAHUOLU AFFORDABLE HOUSING PROJECT SOLID WASTE MANAGEMENT PLAN
BELT COLLINS HAWAII LTD. PAGE 23 OF 24
According to the 2002 Updated Integrated Solid Waste Management Plan for the County of Hawai’i, the Pu’uanahulu Landfill is estimated to have 12 million cubic yards of air space which is enough to accommodate the waste generated by West Hawaii for approximately the next 40 years. In 2000, approximately 90,000 tons of waste was deposited at this landfill. Using this quantity of waste, the annual percent waste increase to the West Hawai’i Landfill from the Keahuolu Affordable Housing project were estimated in Table 4-2. The full-build out annual occupancy landfill waste percentage of the annual West Hawaii Landfill waste would be estimated to be 4.43%, 6,79% or 7.40% for the development concepts A, B or C, respectively.
TABLE 4-2: KEAHUOLU AFFORDABLE HOUSING PROJECT WASTE GENERATION IMPACT ON WEST HAWAI`I LANDFILL
Percent Annual Waste Increase to Landfill1 Year Concept A Concept B Concept C 2008 0.29 – 0.51 0.29 – 0.51 0.25 – 0.43 2009 0.58 – 1.01 0.58 – 1.01 0.50 – 0.87 2010 1.48 – 1.91 1.48 – 1.91 1.28 – 1.65 2011 2.16 – 2.42 2.38 – 2.81 2.07 – 2.45 2012 2.89 – 3.03 3.28 – 3.71 2.86 – 3.23 2013 3.35 4.41 – 4.84 3.88 – 4.24 2014 3.35 5.04 – 5.28 4.66 – 5.03 2015 3.35 5.65 – 5.67 5.39 – 5.71 2016 3.44 – 3.50 5.80 – 5.86 6.00 – 6.20 2017 3.44 – 3.50 5.80 – 5.86 6.41 – 6.47 2018 3.98 – 4.04 6.35 – 6.40 6.95 – 7.01 2019 3.98 – 4.04 6.35 – 6.40 3.95 – 7.01 2020 4.43 6.79 7.40
Notes: Calculation based on [(total Landfilled Waste from Tables 4-1A, 4-1B or 4-1C) / (90,000 tons/year)] x 100 percent. It should be noted that the objectives for waste diversion for both construction and operations at the Keahuolu Affordable Housing project are based upon the assumption that private companies in the vicinity of the development can be contracted to either directly recycle materials on the island of Hawai’i or to economically ship materials to recycling markets elsewhere in Hawai’i, the U.S. mainland, or international countries. If recycling vendors are not immediately available for all materials intended to be recycled, some of these materials may be hauled to the landfill.
KEAHUOLU AFFORDABLE HOUSING PROJECT SOLID WASTE MANAGEMENT PLAN
BELT COLLINS HAWAII LTD. PAGE 24 OF 24
REFERENCES
1. County of Hawai’i. December 2002. Update to the Integrated Solid Waste Management Plan for the County of Hawai’i. Prepared by Harding ESE, Aiea, Hawai’i. 2. County of Hawai’i. 1993. Integrated Solid Waste Management Plan for the County of Hawai’i.
3. County of Hawai’i. Department of Environmental Management. Solid Waste Management Plan: Guidelines. Hawai’i, 2003.
4. Hawai’i Advanced Building Technologies Training Program (HABiT). January 2000. Guide to Resource-Efficient Building in Hawai’i - HABiT. Developed by Kathleen O'Brien of O'Brien and Associates, WA. Managed by Alan Ewell, Integrated Architecture and Gail-Suzuki-Jones, Clean Hawai’i Center, HI. Funded by U.S. Department of Energy through Hawai’i Department of Business, Economic.
5. Hawai’i Department of Business, Economic Development and Tourism. No date. A Contractor's Waste Management Guide - Best Management Practices and Tools for Job Site Recycling and Waste Reduction in Hawai’i. Prepared by O'Brien & Company, Bainbridge Island, Washington.
6. Hawai’i. Department of Environmental Services. Oahu Waste Composition, Disposal and Recycling – 2003. http://envhonolulu.org/solid_waste/archive/Oahu_Waste_Composition.html.
7. Personal Communication, Mr. Chris Chin-Chance, Recycling Specialist, County of Hawai’i – Department of Environmental Management, November 30, 2006.
8. Recycle Hawai’i. June 1999. Big Island Recycling Guide. Brochure.
9. Tchobanoglous, George, Theisen, Hilary, Eliassen, Rolf. Solid Waste: Engineering Principles and Management Issues. New York: McGraw-Hill, 1977.
10. Uniform Building Code Volume 1, 1997 ed.
APPENDIX A – CALCULATIONS
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - CONSTRUCTION WASTE
Construction Waste Generation - Concept AYear Building Type Number Building Area (sf)
2008 Multifamily 200 200,000 525 min.Single Family 100 150,000 910 max.
2009 Multifamily 400 400,000 1,050 min.Single Family 200 300,000 1,820 max.
2010 Multifamily 400 400,000 1,050 min.Single Family 200 300,000 1,820 max.
2011 Multifamily 400 400,000 658 min.Single Family 20 30,000 1,141 max.School 8,700
2012 Multifamily 200 200,000 358 min.Single Family 20 30,000 621 max.School 8,700
2013201420152016 Commercial/Retail 100,000 150 min.
260 max.2017 Commercial/Retail 100,000 150 min.
260 max.2018 Commercial/Retail 97,000 146 min.
252 max.2019 Commercial/Retail 97,000 146 min.
252 max.2020
Multifamily 1000 square feetSingle Family 1500 square feetConstruction Waste 3 lbs / ft2 min.Construction Waste 5.2 lbs / ft2 max.
Construction Waste Generation - Concept BYear Building Type Number Building Area (sf)
2008 Multifamily 200 200,000 525 min.Single Family 100 150,000 910 max.
2009 Multifamily 400 400,000 1,050 min.Single Family 200 300,000 1,820 max.
2010 Multifamily 400 400,000 1,050 min.Single Family 200 300,000 1,820 max.
2011 Multifamily 400 400,000 1,063 min.Single Family 200 300,000 1,843 max.School 8,700
2012 Multifamily 400 400,000 1,063 min.Single Family 200 300,000 1,843 max.School 8,700
2013 Multifamily 400 400,000 1,050 min.Single Family 200 300,000 1,820 max.
2014 Multifamily 240 240,000 585 min.Single Family 100 150,000 1,014 max.
2015 Multifamily 40 40,000 60 min.Single Family 0 0 104 max.
2016 Commercial/Retail 100,000 150 min.260 max.
2017 Commercial/Retail 100,000 150 min.260 max.
2018 Commercial/Retail 97,000 146 min.252 max.
2019 Commercial/Retail 97,000 146 min.252 max.
2020
Multifamily 1000 square feetSingle Family 1500 square feetConstruction Waste 3 lbs / ft2 min.Construction Waste 5.2 lbs / ft2 max.
Notes:All calculations are based on (3.0 lbs/ft 2 ) x (area of building) x (number of buildings constructed/year). Pounds were multiplied by 5 x 10-4 (or 1/2000) to convert to tons.
Construction Waste (tons/year)
Construction Waste (tons/year)
Belt Collins Hawaii Ltd. Page 1 of 2 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - CONSTRUCTION WASTE
Construction Waste Generation - Concept CYear Building Type Number Building Area (sf)
2008 Multifamily 300 300,000 450 min.Single Family 0 0 780 max.
2009 Multifamily 600 600,000 900 min.Single Family 0 0 1,560 max.
2010 Multifamily 600 600,000 900 min.Single Family 0 0 1,560 max.
2011 Multifamily 600 600,000 913 min.Single Family 0 0 1,583 max.School 8,700
2012 Multifamily 600 600,000 913 min.Single Family 0 0 1,583 max.School 8,700
2013 Multifamily 600 600,000 900 min.Single Family 0 0 1,560 max.
2014 Multifamily 600 600,000 900 min.Single Family 0 0 1,560 max.
2015 Multifamily 530 530,000 795 min.Single Family 0 0 1,378 max.
2016 Multifamily 230 230,000 495 min.Single Family 0 0 858 max.Commercial/Retail 100,000
2017 Commercial/Retail 100,000 150 min.260 max.
2018 Commercial/Retail 97,000 146 min.252 max.
2019 Commercial/Retail 97,000 146 min.252 max.
2020
Multifamily 1000 square feetSingle Family 1500 square feetConstruction Waste 3 lbs / ft2 min.Construction Waste 5.2 lbs / ft2 max.
Notes:All calculations are based on (3.0 lbs/ft 2 ) x (area of building) x (number of buildings constructed/year). Pounds were multiplied by 5 x 10-4 (or 1/2000) to convert to tons.
Construction Waste (tons/year)
Belt Collins Hawaii Ltd. Page 2 of 2 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - CONSTRUCTION WASTE
Construction Waste Composition - Concept AConstruction Waste Wood Drywall Cardboard Metal Other
(tons/year) (tons/year) (tons/year) (tons/year) (tons/year) (tons/year)2008 525 220 148 34 8 115
910 381 257 59 15 1992009 1,050 440 296 68 17 230
1,820 763 513 118 29 3992010 1,050 440 296 68 17 230
1,820 763 513 118 29 3992011 658 276 186 43 11 144
1,141 478 322 74 18 2502012 358 150 101 23 6 78
621 260 175 40 10 1362013 0 0 0 0 0 0
0 0 0 0 0 02014 0 0 0 0 0 0
0 0 0 0 0 02015 0 0 0 0 0 0
0 0 0 0 0 02016 150 63 42 10 2 33
260 109 73 17 4 572017 150 63 42 10 2 33
260 109 73 17 4 572018 146 61 41 9 2 32
252 106 71 16 4 552019 146 61 41 9 2 32
252 106 71 16 4 552020
Wood Drywall Cardboard Metal OtherWaste Composition: 41.9% 28.2% 6.5% 1.6% 21.9%
Construction Waste Composition - Concept BConstruction Waste Wood Drywall Cardboard Metal Other
(tons/year) (tons/year) (tons/year) (tons/year) (tons/year) (tons/year)2008 525 220 148 34 8 115
910 381 257 59 15 1992009 1,050 440 296 68 17 230
1,820 763 513 118 29 3992010 1,050 440 296 68 17 230
1,820 763 513 118 29 3992011 1,063 445 300 69 17 233
1,843 772 520 120 29 4042012 1,063 445 300 69 17 233
1,843 772 520 120 29 4042013 1,050 440 296 68 17 230
1,820 763 513 118 29 3992014 585 245 165 38 9 128
1,014 425 286 66 16 2222015 60 25 17 4 1 13
104 44 29 7 2 232016 150 63 42 10 2 33
260 109 73 17 4 572017 150 63 42 10 2 33
260 109 73 17 4 572018 146 61 41 9 2 32
252 106 71 16 4 552019 146 61 41 9 2 32
252 106 71 16 4 552020
Wood Drywall Cardboard Metal OtherWaste Composition: 41.9% 28.2% 6.5% 1.6% 21.9%
Year
Year
Belt Collins Hawaii Ltd. Page 1 of 2 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - CONSTRUCTION WASTE
Construction Waste Composition - Concept CConstruction Waste Wood Drywall Cardboard Metal Other
(tons/year) (tons/year) (tons/year) (tons/year) (tons/year) (tons/year)2008 450 189 127 29 7 99
780 327 220 51 12 1712009 900 377 254 59 14 197
1,560 654 440 101 25 3422010 900 377 254 59 14 197
1,560 654 440 101 25 3422011 913 383 257 59 15 200
1,583 663 446 103 25 3472012 913 383 257 59 15 200
1,583 663 446 103 25 3472013 900 377 254 59 14 197
1,560 654 440 101 25 3422014 900 377 254 59 14 197
1,560 654 440 101 25 3422015 795 333 224 52 13 174
1,378 577 389 90 22 3022016 495 207 140 32 8 108
858 360 242 56 14 1882017 150 63 42 10 2 33
260 109 73 17 4 572018 146 61 41 9 2 32
252 106 71 16 4 552019 146 61 41 9 2 32
252 106 71 16 4 552020
Wood Drywall Cardboard Metal OtherWaste Composition: 41.9% 28.2% 6.5% 1.6% 21.9%
Year
Belt Collins Hawaii Ltd. Page 2 of 2 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - OCCUPANCY WASTE
Occupancy Waste Generation - Concept A
Daily (lbs/day) Annual (tons/yr)2010 Multifamily 200 560 3,472
Single Family 100 400 2,480Total 960 5,952
2011 Multifamily 400 1,120 6,944Single Family 200 800 4,960Total 1,920 11,904
2012 Multifamily 600 1,680 10,416Single Family 300 1,200 7,440Total 2,880 17,856
2013 Multifamily 620 1,736 10,763Single Family 400 1,600 9,920School 1 260 1,612Total 3,596 22,295
2014 Multifamily 620 1,736 10,763Single Family 400 1,600 9,920School 1 260 1,612Total 3,596 22,295
2015 Multifamily 620 1,736 10,763Single Family 400 1,600 9,920School 1 260 1,612Total 3,596 22,295
2016 Multifamily 620 1,736 10,763Single Family 400 1,600 9,920School 1 260 1,612Total 3,596 22,295
2017 Multifamily 620 1,736 10,763Single Family 400 1,600 9,920School 1 260 1,612Total 3,596 22,295
2018 Multifamily 620 1,736 10,763Single Family 400 1,600 9,920School 1 260 1,612Commercial/Retail 100,000 584 3,621Total 4,180 25,916
2019 Multifamily 620 1,736 10,763Single Family 400 1,600 9,920School 1 260 1,612Commercial/Retail 100,000 584 3,621Total 4,180 25,916
2020 Multifamily 620 1,736 10,763Single Family 400 1,600 9,920School 1 260 1,612Commercial/Retail 197,000 1,150 7,130Total 4,746 29,425
Multifamily 2.8 persons / unitSingle Family 4 persons / unitSchool
260 personsCommercial/Retail 30 to 60 sf/person for stores (per 1997 UBC)
100 sf/person for office (per 1997 UBC)Use 72 sf/person for 42% of the day
0.005833 persons/sfWaste Generation 6.2 lbs/person/day
4,730
4,730
5,370
Waste Generated
620 students/faculty/staff at the school for 42% of the day
3,259
2,172
1,086
4,069
4,069
4,069
4,069
4,069
Year Building Type Number Population
Belt Collins Hawaii Ltd. Page 1 of 3 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - OCCUPANCY WASTE
Occupancy Waste Generation - Concept B
Daily (lbs/day) Annual (tons/yr)2010 Multifamily 200 560 3,472
Single Family 100 400 2,480Total 960 5,952
2011 Multifamily 400 1,120 6,944Single Family 200 800 4,960Total 1,920 11,904
2012 Multifamily 600 1,680 10,416Single Family 300 1,200 7,440Total 2,880 17,856
2013 Multifamily 800 2,240 13,888Single Family 400 1,600 9,920School 1 260 1,612Total 4,100 25,420
2014 Multifamily 1,000 2,800 17,360Single Family 500 2,000 12,400School 1 260 1,612Total 5,060 31,372
2015 Multifamily 1,200 3,360 20,832Single Family 600 2,400 14,880School 1 260 1,612Total 6,020 37,324
2016 Multifamily 1,240 3,472 21,526Single Family 600 2,400 14,880School 1 260 1,612Total 6,132 38,018
2017 Multifamily 1,240 3,472 21,526Single Family 600 2,400 14,880School 1 260 1,612Total 6,132 38,018
2018 Multifamily 1,240 3,472 21,526Single Family 600 2,400 14,880School 1 260 1,612Commercial/Retail 100,000 584 3,621Total 6,716 41,639
2019 Multifamily 1,240 3,472 21,526Single Family 600 2,400 14,880School 1 260 1,612Commercial/Retail 100,000 584 3,621Total 6,716 41,639
2020 Multifamily 1,240 3,472 21,526Single Family 600 2,400 14,880School 1 260 1,612Commercial/Retail 197,000 1,150 7,130Total 7,282 45,148
Multifamily 2.8 persons / unitSingle Family 4 persons / unitSchool
260 personsCommercial/Retail 30 to 60 sf/person for stores (per 1997 UBC)
100 sf/person for office (per 1997 UBC)Use 72 sf/person for 42% of the day
0.005833 persons/sfWaste Generation 6.2 lbs/person/day
7,599
7,599
8,240
620 students/faculty/staff at the school for 42% of the day
5,725
6,812
6,938
6,938
1,086
2,172
3,259
4,639
Year Building Type Number Population Waste Generated
Belt Collins Hawaii Ltd. Page 2 of 3 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - OCCUPANCY WASTE
Occupancy Waste Generation - Concept C
Daily (lbs/day) Annual (tons/yr)2010 Multifamily 300 840 5,208
Single Family 0 0 0Total 840 5,208
2011 Multifamily 600 1,680 10,416Single Family 0 0 0Total 1,680 10,416
2012 Multifamily 900 2,520 15,624Single Family 0 0 0Total 2,520 15,624
2013 Multifamily 1,200 3,360 20,832Single Family 0 0 0School 1 260 1,612Total 3,620 22,444
2014 Multifamily 1,500 4,200 26,040Single Family 0 0 0School 1 260 1,612Total 4,460 27,652
2015 Multifamily 1,800 5,040 31,248Single Family 0 0 0School 1 260 1,612Total 5,300 32,860
2016 Multifamily 2,100 5,880 36,456Single Family 0 0 0School 1 260 1,612Total 6,140 38,068
2017 Multifamily 2,330 6,524 40,449Single Family 0 0 0School 1 260 1,612Total 6,784 42,061
2018 Multifamily 2,330 6,524 40,449Single Family 0 0 0School 1 260 1,612Commercial/Retail 100,000 584 3,621Total 7,368 45,682
2019 Multifamily 2,330 6,524 40,449Single Family 0 0 0School 1 260 1,612Commercial/Retail 100,000 584 3,621Total 7,368 45,682
2020 Multifamily 2,330 6,524 40,449Single Family 0 0 0School 1 260 1,612Commercial/Retail 197,000 1,150 7,130Total 7,934 49,191
Multifamily 2.8 persons / unitSingle Family 4 persons / unitSchool
260 personsCommercial/Retail 30 to 60 sf/person for stores (per 1997 UBC)
100 sf/person for office (per 1997 UBC)Use 72 sf/person for 42% of the day
0.005833 persons/sfWaste Generation 6.2 lbs/person/day
8,977
620 students/faculty/staff at the school for 42% of the day
6,947
7,676
8,337
8,337
2,851
4,096
5,046
5,997
950
1,901
Waste GeneratedYear Building Type Number Population
Belt Collins Hawaii Ltd. Page 3 of 3 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - OCCUPANCY WASTE COMPOSITION
Occupancy Waste Composition - Concept AYear
Paper Yard Food Plastic Other Organic Metals Glass Inorganic Total2010 181 136 91 48 233 142 17 237 1,0862011 363 272 182 96 467 285 35 473 2,1722012 544 407 274 143 701 427 52 710 3,2592013 680 509 342 179 875 533 65 887 4,0692014 680 509 342 179 875 533 65 887 4,0692015 680 509 342 179 875 533 65 887 4,0692016 680 509 342 179 875 533 65 887 4,0692017 680 509 342 179 875 533 65 887 4,0692018 790 591 397 208 1,017 620 76 1,031 4,7302019 790 591 397 208 1,017 620 76 1,031 4,7302020 897 671 451 236 1,155 703 86 1,171 5,370
Waste Composition16.7% 12.5% 8.4% 4.4% 21.5% 13.1% 1.6% 21.8% 100.0%
Occupancy Waste Composition - Concept BYear
Paper Yard Food Plastic Other Organic Metals Glass Inorganic Total2010 181 136 91 48 233 142 17 237 1,0862011 363 272 182 96 467 285 35 473 2,1722012 544 407 274 143 701 427 52 710 3,2592013 775 580 390 204 997 608 74 1,011 4,6392014 956 716 481 252 1,231 750 92 1,248 5,7252015 1,138 852 572 300 1,465 892 109 1,485 6,8122016 1,159 867 583 305 1,492 909 111 1,512 6,9382017 1,159 867 583 305 1,492 909 111 1,512 6,9382018 1,269 950 638 334 1,634 995 122 1,657 7,5992019 1,269 950 638 334 1,634 995 122 1,657 7,5992020 1,376 1,030 692 363 1,772 1,079 132 1,796 8,240
Waste Composition16.7% 12.5% 8.4% 4.4% 21.5% 13.1% 1.6% 21.8% 100.0%
Occupancy Waste Composition - Concept CYear
Paper Yard Food Plastic Other Organic Metals Glass Inorganic Total2010 159 119 80 42 204 124 15 207 9502011 317 238 160 84 409 249 30 414 1,9012012 476 356 239 125 613 373 46 622 2,8512013 684 512 344 180 881 537 66 893 4,0962014 843 631 424 222 1,085 661 81 1,100 5,0462015 1,001 750 504 264 1,289 786 96 1,307 5,9972016 1,160 868 584 306 1,494 910 111 1,514 6,9472017 1,282 960 645 338 1,650 1,006 123 1,673 7,6762018 1,392 1,042 700 367 1,792 1,092 133 1,817 8,3372019 1,392 1,042 700 367 1,792 1,092 133 1,817 8,3372020 1,499 1,122 754 395 1,930 1,176 144 1,957 8,977
Waste Composition16.7% 12.5% 8.4% 4.4% 21.5% 13.1% 1.6% 21.8% 100.0%
Occupancy Waste (tons/year)
Occupancy Waste (tons/year)
Occupancy Waste (tons/year)
Belt Collins Hawaii Ltd. Page 1 of 1 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - CONSTRUCTION WASTE - DIVERTED OR RECYCLED
Construction Waste - Diverted or Recycled - Concept AConstruction Waste Wood Cardboard Metal Total
(tons/year) (tons/year) (tons/year) (tons/year) (tons/year)2008 525 220 34 8 263
910 381 59 15 4552009 1,050 440 68 17 525
1,820 763 118 29 9102010 1,050 440 68 17 525
1,820 763 118 29 9102011 658 276 43 11 329
1,141 478 74 18 5712012 358 150 23 6 179
621 260 40 10 3112013 0 0 0 0 0
0 0 0 0 02014 0 0 0 0 0
0 0 0 0 02015 0 0 0 0 0
0 0 0 0 02016 150 63 10 2 75
260 109 17 4 1302017 150 63 10 2 75
260 109 17 4 1302018 146 61 9 2 73
252 106 16 4 1262019 146 61 9 2 73
252 106 16 4 1262020
Wood Cardboard Metal OtherWaste Composition: 41.9% 6.5% 1.6% 49.9%
Construction Waste - Diverted or Recycled - Concept BConstruction Waste Wood Cardboard Metal Total
(tons/year) (tons/year) (tons/year) (tons/year) (tons/year)2008 525 220 34 8 263
910 381 59 15 4552009 1,050 440 68 17 525
1,820 763 118 29 9102010 1,050 440 68 17 525
1,820 763 118 29 9102011 1,063 445 69 17 532
1,843 772 120 29 9222012 1,063 445 69 17 532
1,843 772 120 29 9222013 1,050 440 68 17 525
1,820 763 118 29 9102014 585 245 38 9 293
1,014 425 66 16 5072015 60 25 4 1 30
104 44 7 2 522016 150 63 10 2 75
260 109 17 4 1302017 150 63 10 2 75
260 109 17 4 1302018 146 61 9 2 73
252 106 16 4 1262019 146 61 9 2 73
252 106 16 4 1262020
Wood Cardboard Metal TotalRecycled WasteWaste Composition: 41.9% 6.5% 1.6% 49.9%
Year
Year
Belt Collins Hawaii Ltd. Page 1 of 2 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - CONSTRUCTION WASTE - DIVERTED OR RECYCLED
Construction Waste - Diverted or Recycled - Concept CConstruction Waste Wood Cardboard Metal Total
(tons/year) (tons/year) (tons/year) (tons/year) (tons/year)2008 450 189 29 7 225
780 327 51 12 3902009 900 377 59 14 450
1,560 654 101 25 7802010 900 377 59 14 450
1,560 654 101 25 7802011 913 383 59 15 457
1,583 663 103 25 7922012 913 383 59 15 457
1,583 663 103 25 7922013 900 377 59 14 450
1,560 654 101 25 7802014 900 377 59 14 450
1,560 654 101 25 7802015 795 333 52 13 398
1,378 577 90 22 6892016 495 207 32 8 248
858 360 56 14 4292017 150 63 10 2 75
260 109 17 4 1302018 146 61 9 2 73
252 106 16 4 1262019 146 61 9 2 73
252 106 16 4 1262020
Wood Cardboard Metal OtherWaste Composition: 41.9% 6.5% 1.6% 21.9%
Year
Belt Collins Hawaii Ltd. Page 2 of 2 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - OCCUPANCY WASTE COMPOSITION - DIVERTED OR RECYCLED
Occupancy Waste Composition - Diverted or Recycled - Concept A
Paper Yard Plastic Metals Glass Total Recyclable
Total Diverted Total Waste
2010 181 136 48 142 17 525 280 1,0862011 363 272 96 285 35 1,049 560 2,1722012 544 407 143 427 52 1,574 841 3,2592013 680 509 179 533 65 1,965 1,050 4,0692014 680 509 179 533 65 1,965 1,050 4,0692015 680 509 179 533 65 1,965 1,050 4,0692016 680 509 179 533 65 1,965 1,050 4,0692017 680 509 179 533 65 1,965 1,050 4,0692018 790 591 208 620 76 2,285 1,220 4,7302019 790 591 208 620 76 2,285 1,220 4,7302020 897 671 236 703 86 2,594 1,385 5,370
Waste Composition16.7% 12.5% 4.4% 13.1% 1.6% 48.3% 25.8%
Occupancy Waste Composition - Diverted or Recycled - Concept B
Paper Yard Plastic Metals Glass Total Recyclable
Total Diverted Total Waste
2010 181 136 48 142 17 525 280 1,0862011 363 272 96 285 35 1,049 560 2,1722012 544 407 143 427 52 1,574 841 3,2592013 775 580 204 608 74 2,241 1,197 4,6392014 956 716 252 750 92 2,765 1,477 5,7252015 1,138 852 300 892 109 3,290 1,757 6,8122016 1,159 867 305 909 111 3,351 1,790 6,9382017 1,159 867 305 909 111 3,351 1,790 6,9382018 1,269 950 334 995 122 3,670 1,961 7,5992019 1,269 950 334 995 122 3,670 1,961 7,5992020 1,376 1,030 363 1,079 132 3,980 2,126 8,240
Waste Composition16.7% 12.5% 4.4% 13.1% 1.6% 48.3% 25.8%
Occupancy Waste Composition - Diverted or Recycled - Concept C
Paper Yard Plastic Metals Glass Total Recyclable
Total Diverted Total Waste
2010 159 119 42 124 15 459 245 9502011 317 238 84 249 30 918 490 1,9012012 476 356 125 373 46 1,377 736 2,8512013 684 512 180 537 66 1,978 1,057 4,0962014 843 631 222 661 81 2,437 1,302 5,0462015 1,001 750 264 786 96 2,897 1,547 5,9972016 1,160 868 306 910 111 3,355 1,792 6,9472017 1,282 960 338 1,006 123 3,708 1,980 7,6762018 1,392 1,042 367 1,092 133 4,027 2,151 8,3372019 1,392 1,042 367 1,092 133 4,027 2,151 8,3372020 1,499 1,122 395 1,176 144 4,336 2,316 8,977
Waste Composition16.7% 12.5% 4.4% 13.1% 1.6% 48.3% 25.8%
Year
Year
Year
Occupancy Waste (tons/year)
Occupancy Waste (tons/year)
Occupancy Waste (tons/year)
Belt Collins Hawaii Ltd. Page 1 of 1 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - SUMMARY OF WASTE DIVERTED AND LANDFILLED
Summary of Waste Diverted and Landfilled - Concept A
Waste (tons/yr)
# Trucks per week
Waste (tons/yr)
# Trucks per week
Waste (tons/yr)
# Trucks per week
Waste (tons/yr)
# Trucks per week
263 0.5 262 0.5 263 262455 0.9 455 0.9 455 455525 1.0 525 1.0 525 525910 1.8 910 1.8 910 910525 1.0 525 1.0 805 1,331910 1.8 910 1.8 1,190 1,716329 0.6 329 0.6 889 1,941571 1.1 570 1.1 1,131 2,182179 0.3 179 0.3 1,020 2,597311 0.6 310 0.6 1,152 2,7280 0.0 0 0.0 1,050 3,0190 0.0 0 0.0 1,050 3,0190 0.0 0 0.0 1,050 3,0190 0.0 0 0.0 1,050 3,0190 0.0 0 0.0 1,050 3,0190 0.0 0 0.0 1,050 3,01975 0.1 75 0.1 1,125 3,094130 0.3 130 0.3 1,180 3,14975 0.1 75 0.1 1,125 3,094130 0.3 130 0.3 1,180 3,14973 0.1 73 0.1 1,293 3,583126 0.2 126 0.2 1,346 3,63673 0.1 73 0.1 1,293 3,583126 0.2 126 0.2 1,346 3,6360 0.0 0 0.0 1,385 3,9850 0.0 0 0.0 1,385 3,985
Company Pacific Waste Phone: (808) 882-7295 Contact Info: Rich Truax (Sales Manager)Construction Truck Volume: 20'x8'x7' (LxWxH) = 41.5 CY (Max Load is 10 tons) email: [email protected] Bin Volume: 72"x43"x45" (LxWxH) = 3 CY Use Truck Capacity: 10 tons / truck
Summary of Waste Diverted and Landfilled - Concept B
Waste (tons/yr)
# Trucks per week
Waste (tons/yr)
# Trucks per week
Waste (tons/yr)
# Trucks per week
Waste (tons/yr)
# Trucks per week
263 0.5 262 0.5 263 262455 0.9 455 0.9 455 455525 1.0 525 1.0 525 525910 1.8 910 1.8 910 910525 1.0 525 1.0 805 1,331910 1.8 910 1.8 1,190 1,716532 1.0 531 1.0 1,092 2,143922 1.8 921 1.8 1,482 2,533532 1.0 531 1.0 1,373 2,949922 1.8 921 1.8 1,763 3,339525 1.0 525 1.0 1,722 3,967910 1.8 910 1.8 2,107 4,352293 0.6 292 0.6 1,770 4,540507 1.0 507 1.0 1,984 4,75530 0.1 30 0.1 1,787 5,08552 0.1 52 0.1 1,809 5,10775 0.1 75 0.1 1,865 5,223130 0.3 130 0.3 1,920 5,27875 0.1 75 0.1 1,865 5,223130 0.3 130 0.3 1,920 5,27873 0.1 73 0.1 2,034 5,711126 0.2 126 0.2 2,087 5,76473 0.1 73 0.1 2,034 5,711126 0.2 126 0.2 2,087 5,7640 0.0 0 0.0 2,126 6,1140 0.0 0 0.0 2,126 6,114
Company Pacific Waste Phone: (808) 882-7295 Contact Info: Rich Truax (Sales Manager)Construction Truck Volume: 20'x8'x7' (LxWxH) = 41.5 CY (Max Load is 10 tons) email: [email protected] Bin Volume: 72"x43"x45" (LxWxH) = 3 CY Use Truck Capacity: 10 tons / truck
2011
2012
2013
Year
2008
2009
2010
Total Landfilled
Waste (tons/yr)
Diverted LandfilledConstruction Waste
Diverted LandfilledOccupancy Waste Total
Diverted Waste
(tons/year)
0 0.0 0 0.0
0 0.0 0 0.0
280 0.5 806 1.6
560 1.1 1,612 3.1
841 1.6 2,418 4.7
1,050 2.0 3,019 5.8
1,050 2.0 3,019 5.8
1,050 2.0 3,019 5.8
1,050 2.0 3,019 5.8
1,050 2.0 3,019 5.8
1,220 2.3 3,510 6.8
6.8
7.72.71,385
1,220 2.3 3,510
3,985
2014
2015
2016
2017
2018
2019
2020
Year
Construction Waste Occupancy Waste Total Diverted Waste
(tons/year)
Total Landfilled
Waste (tons/yr)
Diverted Landfilled Diverted Landfilled
0.0
2009 0 0.0 0 0.0
2008 0 0.0 0
1.6
2011 560 1.1 1,612 3.1
2010 280 0.5 806
4.7
2013 1,197 2.3 3,442 6.6
2012 841 1.6 2,418
8.2
2015 1,757 3.4 5,055 9.7
2014 1,477 2.8 4,248
9.9
2017 1,790 3.4 5,148 9.9
2016 1,790 3.4 5,148
10.8
2019 1,961 3.8 5,638 10.8
2018 1,961 3.8 5,638
11.82020 2,126 4.1 6,114
Belt Collins Hawaii Ltd. Page 1 of 2 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - SUMMARY OF WASTE DIVERTED AND LANDFILLED
Summary of Waste Diverted and Landfilled - Concept C
Waste (tons/yr)
# Trucks per week
Waste (tons/yr)
# Trucks per week
Waste (tons/yr)
# Trucks per week
Waste (tons/yr)
# Trucks per week
225 0.4 225 0.4 225 225390 0.8 390 0.8 390 390450 0.9 450 0.9 450 450780 1.5 780 1.5 780 780450 0.9 450 0.9 695 1,155780 1.5 780 1.5 1,025 1,485457 0.9 456 0.9 947 1,867792 1.5 791 1.5 1,282 2,202457 0.9 456 0.9 1,193 2,571792 1.5 791 1.5 1,528 2,906450 0.9 450 0.9 1,507 3,489780 1.5 780 1.5 1,837 3,819450 0.9 450 0.9 1,752 4,194780 1.5 780 1.5 2,082 4,524398 0.8 397 0.8 1,945 4,847689 1.3 689 1.3 2,236 5,139248 0.5 247 0.5 2,040 5,402429 0.8 429 0.8 2,221 5,58475 0.1 75 0.1 2,055 5,771130 0.3 130 0.3 2,110 5,82673 0.1 73 0.1 2,224 6,259126 0.2 126 0.2 2,277 6,31273 0.1 73 0.1 2,224 6,259126 0.2 126 0.2 2,277 6,3120 0.0 0 0.0 2,316 6,6610 0.0 0 0.0 2,316 6,661
Company Pacific Waste Phone: (808) 882-7295 Contact Info: Rich Truax (Sales Manager)Construction Truck Volume: 20'x8'x7' (LxWxH) = 41.5 CY (Max Load is 10 tons) email: [email protected] Bin Volume: 72"x43"x45" (LxWxH) = 3 CY Use Truck Capacity: 10 tons / truck
2008
Year
Construction Waste Occupancy Waste Total Diverted Waste
(tons/year)
Total Landfilled
Waste (tons/yr)
Diverted Landfilled Diverted Landfilled
0 0.0 0 0.0
0.0
2010 245 0.5 705 1.4
2009 0 0.0 0
2.7
2012 736 1.4 2,115 4.1
2011 490 0.9 1,411
5.8
2014 1,302 2.5 3,744 7.2
2013 1,057 2.0 3,039
8.6
2016 1,792 3.4 5,155 9.9
2015 1,547 3.0 4,450
11.0
2018 2,151 4.1 6,186 11.9
2017 1,980 3.8 5,696
11.9
2020 2,316 4.5 6,661 12.8
2019 2,151 4.1 6,186
Belt Collins Hawaii Ltd. Page 2 of 2 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - PROJECT IMPACT ON WEST HAWAI`I LANDFILL
Summary of Waste Diverted and Landfilled - Concept A
Diverted Landfilled Diverted LandfilledWaste
(tons/yr)Waste
(tons/yr)Waste
(tons/yr)Waste
(tons/yr)263 262 263 262 0.29%455 455 455 455 0.51%525 525 525 525 0.58%910 910 910 910 1.01%525 525 805 1,331 1.48%910 910 1,190 1,716 1.91%329 329 889 1,941 2.16%571 570 1,131 2,182 2.42%179 179 1,020 2,597 2.89%311 310 1,152 2,728 3.03%0 0 1,050 3,019 3.35%0 0 1,050 3,019 3.35%0 0 1,050 3,019 3.35%0 0 1,050 3,019 3.35%0 0 1,050 3,019 3.35%0 0 1,050 3,019 3.35%75 75 1,125 3,094 3.44%130 130 1,180 3,149 3.50%75 75 1,125 3,094 3.44%130 130 1,180 3,149 3.50%73 73 1,293 3,583 3.98%126 126 1,346 3,636 4.04%73 73 1,293 3,583 3.98%126 126 1,346 3,636 4.04%0 0 1,385 3,985 4.43%0 0 1,385 3,985 4.43%
Company Pacific Waste Phone: Rich Truax (Sales Manager)Construction email: [email protected] Use Truck Capacity: 10 tons / truck
Summary of Waste Diverted and Landfilled - Concept B
Diverted Landfilled Diverted LandfilledWaste
(tons/yr)Waste
(tons/yr)Waste
(tons/yr)Waste
(tons/yr)263 262 263 262 0.29%455 455 455 455 0.51%525 525 525 525 0.58%910 910 910 910 1.01%525 525 805 1,331 1.48%910 910 1,190 1,716 1.91%532 531 1,092 2,143 2.38%922 921 1,482 2,533 2.81%532 531 1,373 2,949 3.28%922 921 1,763 3,339 3.71%525 525 1,722 3,967 4.41%910 910 2,107 4,352 4.84%293 292 1,770 4,540 5.04%507 507 1,984 4,755 5.28%30 30 1,787 5,085 5.65%52 52 1,809 5,107 5.67%75 75 1,865 5,223 5.80%130 130 1,920 5,278 5.86%75 75 1,865 5,223 5.80%130 130 1,920 5,278 5.86%73 73 2,034 5,711 6.35%126 126 2,087 5,764 6.40%73 73 2,034 5,711 6.35%126 126 2,087 5,764 6.40%0 0 2,126 6,114 6.79%0 0 2,126 6,114 6.79%
Company Pacific Waste Phone: Rich Truax (Sales Manager)Construction email: [email protected] Use Truck Capacity: 10 tons / truck
2020 2,126 6,114
2019 1,961 5,638
2018 1,961 5,638
2017 1,790 5,148
2016 1,790 5,148
2015 1,757 5,055
2014 1,477 4,248
2013 1,197 3,442
2012 841 2,418
2011 560 1,612
2010 280 806
Occupancy Waste Total Diverted Waste
(tons/year)
Total Landfilled
Waste (tons/yr)
2009 0 0
2008 0 0
2019
2020
Year
Construction Waste
1,385
1,220 3,510
3,985
1,050 3,019
1,220 3,510
3,019
1,050 3,019
1,050 3,019
280 806
560 1,612
Percent Annual Waste Increase to Landfill
0 0
0 0
Total Landfilled
Waste (tons/yr)
Construction Waste Occupancy Waste Total Diverted Waste
(tons/year)
Year
2008
2009
2010
2014
2015
2016
2017
2018
Percent Annual Waste Increase to Landfill
2011
2012
2013
841 2,418
1,050 3,019
1,050
Belt Collins Hawaii Ltd. Page 1 of 2 December 2007
KEAHUOLU AFFORDABLE HOUSING PROJECT SWMP - PROJECT IMPACT ON WEST HAWAI`I LANDFILL
Summary of Waste Diverted and Landfilled - Concept C
Diverted Landfilled Diverted LandfilledWaste
(tons/yr)Waste
(tons/yr)Waste
(tons/yr)Waste
(tons/yr)225 225 225 225 0.25%390 390 390 390 0.43%450 450 450 450 0.50%780 780 780 780 0.87%450 450 695 1,155 1.28%780 780 1,025 1,485 1.65%457 456 947 1,867 2.07%792 791 1,282 2,202 2.45%457 456 1,193 2,571 2.86%792 791 1,528 2,906 3.23%450 450 1,507 3,489 3.88%780 780 1,837 3,819 4.24%450 450 1,752 4,194 4.66%780 780 2,082 4,524 5.03%398 397 1,945 4,847 5.39%689 689 2,236 5,139 5.71%248 247 2,040 5,402 6.00%429 429 2,221 5,584 6.20%75 75 2,055 5,771 6.41%130 130 2,110 5,826 6.47%73 73 2,224 6,259 6.95%126 126 2,277 6,312 7.01%73 73 2,224 6,259 6.95%126 126 2,277 6,312 7.01%0 0 2,316 6,661 7.40%0 0 2,316 6,661 7.40%
Company Pacific Waste Phone: Rich Truax (Sales Manager)Construction email: [email protected] Use Truck Capacity: 10 tons / truck
2020 2,316 6,661
2019 2,151 6,186
2018 2,151 6,186
2017 1,980 5,696
2016 1,792 5,155
2015 1,547 4,450
2014 1,302 3,744
2013 1,057 3,039
2012 736 2,115
2011 490 1,411
2010 245 705
2009 0 0
Total Diverted Waste
(tons/year)
Total Landfilled
Waste (tons/yr)
0 0
Year
Construction Waste Occupancy Waste
2008
Percent Annual Waste Increase to Landfill
Belt Collins Hawaii Ltd. Page 2 of 2 December 2007